Well, I lost my '95 Del Sol VTEC in a car accident and bought a '95 Civic EX for $2,250. Both cars have about 135K miles on them. The new Civic EX also has a VTEC motor in it,, both cars have 4 speed automatic transmissions. The new Civic is terrible on gas though, the Del Sol would go a week on one tank of gas, the new Civic needs two tanks a week! I had some dash lights out on the Civic so I started with that, changed all the cluster lights and indicator lamps. Now I have CEL on all the time, check the codes, and get back a 41, oxygen sensor. my buddy has Honda software and it shows how to check the sensor with an ohmmeter. I should get between 10 and 40 ohms on the lower two pins at the connector and I check them and get an open circuit on the sensor, no ohms or continuity at all.

I check the Del Sol sensor because I still have it and sure enough, 10 ohms when cold, bad oxygen sensor in the Civic. I want to put the one from the Del Sol into the Civic but my buddy says a new part would be better so we call around. Bennet wants $82 and Advanced Auto wants $88, neither has them in stock, can get them by Monday. I say to hell with it, put the Del Sol sensor into the Civic. My buddy has to remove the heat shield because the tool to get the sensor out won't fit through the hole and it is a total bitch to get that sensor loose. While we are trying to get the sensor loose, my buddy looks at the exhaust manifold where two parts go together and sure enough, he sees a crack. I check with the flashlight and sure enough, the manifold has a small crack in it. Great!

So we decide that on Monday, he can take the exhaust manifold off of the Del Sol and put it on the Civic with the oxygen sensor and all, all as one piece. We will get new gaskets and just get it done. He wants the motor out of the wrecked Del Sol pretty bad so he will do the job cheap, less than one hundred dollars. I told him to just get it done and he thinks he can have it done by noon or 2;00 or so if I get it to him by 9 or 9:30. He used to work for Pompano Honda and now has a small shop in a warehouse with lifts in it and everything.

He says that a stock manifold costs about $400 and they suck, do not give performance to the car or anything and are expensive. An after market would cost less and give performance. I don't really care, I have a wrecked Del Sol with exactly the right part in it so that is what we are using to get the job done.

So is this new manifold and sensor going to help me with gas mileage? I need two tanks of gas to every one that the Del Sol used. The crack in the manifold is very small, you cannot hear it or anything but if you look with a flashlight, you can see a very small crack where two sections of it come down to the main part of the manifold. Is a small crack in an exhaust manifold really important to get done and what would happen if I did not see it or do anything about it? My buddy is doing this job for practically nothing, he wants like $40 to do it, maybe a little more if he needs new gaskets. I told him to just get new gaskets and I would take care of him good, give him a couple of hundred dollars if it is a real good job and he gets it done by 2 in the afternoon, or maybe less if this does not work out so well, although he seems to know what he is doing, has a shop with a lift, has all of the tools, and everything you need to get major jobs done and all.

What do you guys think about all of this, will it help the car, the gas mileage, the engine, good price for the job, and should this be all I need for now? This car I just bought and it has 136k miles on it.

Thanks,

 

im not reading all of that

 

haha, let me read it and see if it's worth it.

 

well if the sensor is shot, then you need a new one... or a working used one!

if you still have the o2 sensor from your wrecked sol, and they are both d-series of the same generation.. i don't see why you can't just swap them over, or even try swapping the delsol header on to the civic... they are basically the same size/length..

an ebay header ss, 4-2-1 works great, and will run you about 50-70 dollars shipped.

it will get your car back on the road, and you will get better mileage...

i think the mileage problem is the a combination of both a cracked header, and a broken o2 sensor..

 

i tried reading the 1st paragraph. by the 2nd one i skim though. by the 3rd i'm looking for key words. but i am running with a crack stock manifold and getting excellent gas millage. i doubt the crack manifold is effecting the gas millage. a broken o2 sensor can cause bad gas millage. how many miles are you getting on a full tank of gas on both cars?

your 95 del sol vtec should be getting 260-300 miles on a full tank. the tank for this car is 12 gal but when the needle hit "E" or when the fuel light indicator comes on most likely the car has only consume 10 gal.

your 95 civic ex should be getting 290-350 miles on a full tank. again, this car has a 12 gal tank and when needle hits "e" mark or fuel light has come on, the car has consume about 10 gal total.

i am running the same motor as your 95 civic ex. i'm getting about 300 miles on a full tank. the motor is in a 94 civic cx. the cx only has a 10 gal tank. so my car consumes only 8 gal when the needle hits "E"

i use regular 5-30 oil. pump 87 octane fuel. my spark plug are ngk stocks, my spark wires are sumitumo oem stock. everything is stock actually. even the air box w/ upper and lower air box. my timing is set to 0 TDC rpm idle is at 750rpm. i have stock header exhaust with o2 sensor. the stock header is crack like how you describe yours. but i don't see it effecting my gas millage what so ever.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bpr0422 &raquo;</TD></TR><TR><TD CLASS="quote">well if the sensor is shot, then you need a new one... or a working used one!

if you still have the o2 sensor from your wrecked sol, and they are both d-series of the same generation.. i don't see why you can't just swap them over, or even try swapping the delsol header on to the civic... they are basically the same size/length..

an ebay header ss, 4-2-1 works great, and will run you about 50-70 dollars shipped.

it will get your car back on the road, and you will get better mileage...

i think the mileage problem is the a combination of both a cracked header, and a broken o2 sensor..</TD></TR></TABLE>

correct me if i'm wrong, but he mention he had a 95 del sol vtec. aren't the vtec models a B series 160hp motor? i remember the si models are the D series motor.

 

oops. double post. ignore this one.

 

i'm actually not too sure if the 95 del sol vtec

came with a B-series...

if it did, then you can't swap headers..

but he might be able to swap O2 sensors.

if that is the case, then an ebay header is his best bet.

cause i know a 95 Civic ex, is a D-series.

if the crack is small enough.. it should be fine.. but i rather just be sure, and spend 50 on a new header, no cracks... its lighter, and has bigger piping... did i mention no leaks?

The stock header, with all its carbon build up won't leak till you get rid of the carbon, or the hole gets big enough..

also after you get everything fixed.. seafoam your car then get an oil change.

seafoam works wonders XD

 

two thumbs down for California banning aftermarket headers.

starting 94, b-series motor was added to the del sol.
i believe 94,95 del sol VTEC comes with a b16a3. 96,97 is b16a2.


Modified by lv6l at 1:43 AM 2/3/2008


Modified by lv6l at 1:48 AM 2/3/2008

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 95vxtealhatch &raquo;</TD></TR><TR><TD CLASS="quote">im not reading all of that</TD></TR></TABLE>

Heh heh,, poor guy. I take it that English and Reading were not your favorite subjects in school, is that it? I am not good at engine mechanics, I stopped fixing cars when they started putting the motors in sideways. So now I have to ask for help when something big comes up like a cracked manifold.

it's okay dude, just read along for the ride.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lv6l &raquo;</TD></TR><TR><TD CLASS="quote">haha, let me read it and see if it's worth it.</TD></TR></TABLE>

Yeah, help out 95vxtealhatch, will ya? I need some sensible answers here and almost everyone has some sort if idea of what to do.

Thanks.

 

Agreed. It is shot. No continuity at all between the two lower pins. No continuity anywhere between any of the 4 pins, no doubt it is bad. I checked the Del Sol and got 10 ohms between the two lower pins. They tell you in the service manual how to check the sensor right here, see this picture at full size:

http://www.ohmster.com/~ohmste...r.jpg

Yeah, that is what I want to do. Money is really tight these days, between jobs, and this is my only "get to work" car so it has to get fixed, properly, and has to last. The regular shops around here are scary, if you go to EF auto or even Banner Tire before Wilma shut them down, EVERY repair, no matter what, would cost may hundreds of dollars. You would go in for maybe an exhaust leak and they would tell you "this, that, and the other" and the next thing you knew, you had to pay $749 to get your car back!

It was a lucky break that I met this fellow with his own Honda shop, he stopped by my house while I was getting home to ask about the wrecked Del Sol sitting in the driveway, said he wanted the motor. He did not have a lot of money to offer, I got him to give up a hundred dollars for it, but he did offer to help me take the dash apart to do all of the lamps, fix the cruise control, give me the two good tires on the car, and anything else within reason.

So yesterday we took the car to his shop and he pulled the cluster for me and I started changing lamps. The Honda lamps were too expensive, $4 for the transmission console lamp and like $8 each for the instrument lamps. Some nice fellow from here sent me a link when I asked how to take the dash apart to this page:

https://honda-tech.com/zerothread?id=661308

And also this link on how to change lamps:

https://honda-tech.com/zerothread?id=1780237

So now I know I can use Radio Shack and Pep Boys lamps for the car. i used the Pep Boys #24 for the cluster but they are white and not blue, at least I have lights now though. But now I have a constantly lit CEL and that is what threw the oxygen sensor code.

We tried to get the sensor out of my Civic and took the heat shield off and that sensor would not come out for nothing, even with the right tool. Tight as all hell. Then my friend saw the crack and decided to just change the whole exhaust manifold over from the Del Sol to the Civic, sensor and all. Too late in the day to get to it but he said he could do it on Monday. I need to get to work by like noon or at least by 1 or 2 at the latest and he thinks he can have it done by then if he starts around 9 or 9:30. He asked me if I want to buy new gaskets or use the old ones but they are not expensive he says, talking like tens of dollars so I say use new ones. He said he only needed about $40 or so to do the job, although I would probably give the guy a hundred if he really does get the manifold done right with the sensor change too. It would be worth it.

What is an ebay header? You mean buy an exhaust manifold from ebay? Are they good, are they cheap? Can you give me a link or some example to look at? $50-$70 is a pretty good price for a manifold I would think. It is just the job that would be killer. Just think about all of those bolts that have been on that engine for 136,000 miles, getting all hot, hundreds of degrees and all. The sensor did not want to come out at all so imagine all of those manifold bolts and trying to get them out? How impossible would that be?

Tell me a little more about manifolds, what they cost, where do you get them, more about this ebay stuff, and just what would a normal rate be to change an exhaust manifold, can you or somebody help me with that please?

Thanks for your help.

 

Well yeah, I write a lot, but that is how to communicate, and this could end up being expensive, and making a bad decision here could be a very bad thing.

The engines on both cars are amazingly similar, if not exactly the same. I don't think the manifold crack is affecting anything right now, but an exhaust manifold is a pretty important thing. It can affect performance and if it breaks, you could be in some very serious trouble. The crack is very small, the only way we knew about it was that we took the heat shield off to try and get the sensor out and with the flashlight, Marcelo knew from working on these cars that a manifold crack is common after tons of miles and he looked and he found one.

The cars cost about the same to fill with gas, about $25 or close to $30 if you are really on fumes and the cost of fuel is high, I use 87 grade gasoline. I do the same amount of driving each week, to work and back, to the store, and visiting friends that live maybe 12 miles away a few times a week. The Del Sol tank of gas would last almost the whole week. The Civic needs to be filled almost twice a week. Maybe not exactly but the difference in mileage is quite noticeable, and for someone who is between good jobs, quite painful and needs to get fixed, the sooner the better.

The dude really does know his Hondas, he has contacts at all of the dealers, the distributors, the parts stores, etc. and he had the software that quickly told us what the 41 code was and how to track it down very fast. I am quite sure that the open oxygen sensor is what is causing the poor mileage. With and open oxygen sensor, the ECU thinks that the engine is not getting enough gas and is dumping as much fuel as possible into the engine at all times. This would give horrible gas mileage.

The Del Sol had an low fuel lamp but the Civic does not. So far as I know, the car is straight stock, I just bought it about a week ago so I am still learning what is good and what needs fixing and how it is built. I knew I had bad lamps in the cluster because when I turn the key on, not many lamps would light and I was concerned because I could blow the engine if I lost oil pressure and no light came on to alert me to the fact so I wanted those lights fixed first and then planned to go on and fix the cruise control. But after putting in the lamps and finding the bad sensor and cracked manifold, my priorities changed to getting that CEL to shut off properly, this would gain gas mileage, and while I am at it, try to get the manifold changed too while I have someone with tools and willing to do it for very little money. I cannot afford $750 to get an exhaust manifold and oxygen sensor replaced and that is probably what the shops around here would charge for such job.

I am sure that the crack is not affecting the engine much at this time, you cannot even hear it, if not for looking under the heat shield with a flashlight we would not have ever known that it was cracked. I am afraid, however, that the life of the engine might be drastically reduced because of that crack, one thing about cracks is that they get bigger as time goes by and the manifold might even break if I hit some hard bumps under the right conditions, who knows? One thing for sure, the crack will not help any and is only going to get worse.

These engines look really the same and even Marcelo said we could just put the Del Sol manifold, sensor and all, right onto the Civic and he is a real Honda mechanic. Has his own shop and worked for the dealer for a number of years. So, that has become a priority and if he can really get this done on Monday like he said, then Monday it will be.

I would like to know more about these ebay manifolds or more about manifolds, how much they cost, how they affect performance, where to get them, etc., so if you or anyone else has any links or anything helpful, please pass it along.

Thanks!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bpr0422 &raquo;</TD></TR><TR><TD CLASS="quote">i'm actually not too sure if the 95 del sol vtec

came with a B-series...

if it did, then you can't swap headers..

but he might be able to swap O2 sensors.

if that is the case, then an ebay header is his best bet.

cause i know a 95 Civic ex, is a D-series.

if the crack is small enough.. it should be fine.. but i rather just be sure, and spend 50 on a new header, no cracks... its lighter, and has bigger piping... did i mention no leaks?

The stock header, with all its carbon build up won't leak till you get rid of the carbon, or the hole gets big enough..

also after you get everything fixed.. seafoam your car then get an oil change.

seafoam works wonders XD</TD></TR></TABLE>

Both engines look pretty much exactly the same so far as I can tell. Mareclo is a Honda mechanic, he knows what engine is in the car, a 1.6 liter I think, and I wanted to just put the Del Sol sensor in the Civic to save money and get it done fast, but he said we should put a new part in and we called around. Nobody had one in stock (We did not call the dealer) and they cost between $80 & $90. So we decided to just put the Del Sol sensor into the Civic. The old sensor did not want to come out, not even with the right tool, you could tell, we were both pulling on the end of that ratchet handle with the tool on the end of it and it started to move but it did not feel right. I expected it to creak and finally snap loose but no, the handle just started to move slowly with both of us pulling on it, it felt more like the tool was stripping the sensor rather than the sensor was coming out.

Once Marcelo found the crack, he said a new stock manifold was expensive and did not do anything for performance, after market ones were cheaper and did make the engine run better, but that we could just take the manifold, with sensor and all, right off the Del Sol and put it on the Civic. That would be something I could afford so on Monday that is what we will do, at least that is what I think at this point from what all I know about this stuff. That is what I am writing about it here for, to learn more and decide what to do. The crack is very small and you cannot hear it at all.

Tell me more about this "$50 header", is that the manifold that we are talking about here and where do you get one? No plans to get rid of any carbon in the manifold or anything like that.

What is "seafoam", where do you get it, how much does it cost, how do you apply it, and what is it for?

Thanks!

 

the headers can be found a local junkyards for a very reasonable price. if you lucky sometime they have a 50% off sale on everything in the yard. i remember buying half of the headers (top part) for a custom turbo set up a while back and at full price it was $40.00.

too bad you don't have your del sol anymore, if you do read off the motor code and let us know exactly what motor is in your del sol. becuase S and Si models are D-series. starting 94 they introduce the "VTEC" model which is B-series. both B and
D series that came with this car is 1.6 liters. B has two camshafts instead of one. which is not much but actually is almost a world of difference if you compare the two. the vtec is completely different as well.

your friend is correct, the header you have currently is very common for cracking near the o2 sensor area. all the people i know that still is running these headers is running it crack; including myself. i been running mine crack for about 4 years now. lucky no problems so far. everything is working perfectly. two thumbs up for honda! yay. you can also bring the manifold to a welder and have him carefully weld it back. a buddy of mine did this.

use my formula and calculate how many miles you are getting to a tank. then you will see how many miles you are getting per gal to see what and if things need to be improved.

those ebay aftermarket headers are not too good in my opinion. one, they are illegal in my state. california requires a "carb" sticker on any modifications done to any car. so if this is a concern for you make sure you check with the laws in your state before slapping one of these on. and two, to me they seem like they produce more noise than the stock oem exhaust headers. if you're a fan of noise then nothing wrong with that; you'll be happy with those headers. me, i hate noise. i like my cars very quiet and smooth. people i know that has ran it, never had problems with it. only problem is the noise to me, but some others may like it. crack-wise; we never had any problems with any cracks. surprising due to the fact they are made from china. unless you want to pay a bit more and get the legal "dc" brand one. to get them just go to ebay.com and search for D series headers. and a crap load will pop up. the ones bpr0422 is talking about are the no brand ones made my china. these are the ones my buddies have used before too. they work fine. to me a bit louder than stock. if you want you can sort it by price and check out the "dc" brand ones. these are i think street legal in many states. the performance is almost the same as the no brand ones. only difference is they are probably legal.

 

seafoam is wonder in a bottle. you can get them at your local auto store. like autozone, kregans, etc. do a search for "seafoam" in this forum and you will have your answer. pretty much you pour 1/3 of the bottle in your intakemanifold, 1/3 into your crank case, and the remaining 1/3 in your gas tank. leave it for a while and it's like night and day difference. there are many methods of doing it. again, do a quick search for "seafoam" and you'll understand it a lot more.

 

I notice people here use the words "exhaust manifold" and "headers" interchangeably. Are they just different words to describe the same part? i know that "heads" are for sure not manifolds, they have the valves, stems, & lifters in them and are basically the top part of the engine block. I know that "Hooker Headers" are replacement exhaust manifolds but are much nicer They are tubes all welded together with flanges on them to bolt right onto the side of the heads and are gently curved and come together at the end with a flange to connect to your exhaust pipe. They are so smooth and straight that thee\y must have a very positive effect on engine performance. No rough corners for the exhaust to go around, no constrictions, just nice, clean, smooth pipe to take that hot exhaust right to the exhaust system and yield very little back pressure on the system. So I guess for the sake of this discussion, headers and exhaust manifold means the same thing, is that about right?

The Del Sol I believe was an Si, I did enough small repairs on it to get to know it a little better than most. My Honda mechanic friend says he can put the Del Sol manifold right onto the Civic with the oxygen sensor and all, all in one shot, in like a half a day or so. He should know, he worked at the dealer for a number of years and now has his own shop. The Del Sol was a very solid little car. I replaced the cable spool (Clock spring under the steering wheel.) on it to get the horn and cruise control working again. Changed the VSS to get my speedometer working smooth again, my cruise control back, and shut the CEL up properly. Changed the driver's inside door handle because it was cracked, rewired the JBL amp and sub woofer that came with it to get rid of engine noise, replaced the radiator hoses, and some other small stuff but nothing major.

The Civic I am a little worried about as it already has a cracked manifold, bad oxygen sensor, transmission fluid is a little brown in color and sometimes the automatic transmission will drop to a lower gear by itself and then return to the proper gear and I see no reason for that. Never had that situation with the Del Sol. I am going to have the tranny drained and refilled with fresh, pink fluid and see if that helps. I suspect it won't but I see no harm in doing it. The Civic had a burned out CEL and that lamp hardly gets any usage but for when you turn the key on for a couple of seconds. This sensor must've been bad for a real long time and nobody has done anything about it and just let it burn out by itself. Imagine how much carbon must be in the engine because of that one issue by itself. I hope my millage comes back with a good O2 sensor but I probably should seafoam it as suggested here just to help clean out the fuel injectors.

I will read up more on this seafoam as a lot of people here believe in it so and it cannot hurt to give it try. I wonder what blew such a seldomly used lamp like the CEL? That sensor must've been bad for years for Chrissakes well, we will find out soon enough and I will let you all know how it went for sticking with me and helping out so much.

Thanks Everybody!

 

Make sure to use Honda Automatic Transmission Fluid. Honda tranny are a bit picky sometimes. The headers and o2 sensor should be easy to replace. Yeah, it should take no longer than half an hour to an hour to replace. So half a day is well more then enough time. Good luck with your car.

Whenever I use Seafoam I normally change the oil afterwards. But thats just me, not everyone does it. I never tried it without changing the oil. I just can't stand after cleaning the interior of your motor that you let it sit in your oil pan. But that's just me; thought I might share.

On all the Hondas I've own and sold and tried and worked on. I find it that they are very reliable cars; despite which model or trim. But something common is all the repairs ever done to a Honda is at the beginning of it's life with a new owner when most problems are detected. After a while and all parts have been inspected and clear to go they will outlast your grand children if you like.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lv6l &raquo;</TD></TR><TR><TD CLASS="quote">Make sure to use Honda Automatic Transmission Fluid. Honda tranny are a bit picky sometimes. The headers and o2 sensor should be easy to replace. Yeah, it should take no longer than half an hour to an hour to replace. So half a day is well more then enough time. Good luck with your car.

Whenever I use Seafoam I normally change the oil afterwards. But thats just me, not everyone does it. I never tried it without changing the oil. I just can't stand after cleaning the interior of your motor that you let it sit in your oil pan. But that's just me; thought I might share.

On all the Hondas I've own and sold and tried and worked on. I find it that they are very reliable cars; despite which model or trim. But something common is all the repairs ever done to a Honda is at the beginning of it's life with a new owner when most problems are detected. After a while and all parts have been inspected and clear to go they will outlast your grand children if you like.</TD></TR></TABLE>

My mechanic has tons of dealer tranny fluid at his shop. He says they would give him six units of fluid but the job only required 3 so he has plenty of original Honda fluid at his shop. I asked about changing the filter too but he says that Hondas do not have a replaceable filter that you can get at, it is built deep inside of the transmission and only accessible in the most major of repairs. Just replace the fluid he says, says there is some kind of magnet catcher in there, not sure what he meant by that, maybe to catch any steel shavings or something.

Boy, you sound really confidant about this manifold job. I would think that 136,000 mile nuts and bolts on a hot manifold would not want to come loose for nothing. I asked if he had liquid wrench or something similar and breaker bars and air tools and all that and he says yeah so he is ready to do the job. We tried to get the sensor out of that cracked header and it would not come loose for nothing so that is when Marcelo decided to just change the manifold with the good sensor already in it. I offered to come along to help but he is not sure he needs me to help. He is getting his baby son up now and should be ready in about 20 minutes or so. You really don't think it will be super hard to unbolt an exhaust manifold of 13 years?

I did not read up enough on seafoam to understand how it works. Here is a page on how to use it, seems pretty complicated. The original page is gone but the Google cached one is still there, at this link;
(tinyurl does not work here and the real URL is too long to post)

Oh the product has a good writeup here:
http://www.seafoamsales.com/motorTuneUpTechGas.htm

Well, I will just get the job done right now and then consider the seafoam when everything seems to be done right and all is in order. Then I will change the oil after the cleaning treatment.

Thanks for the shot of confidence, I will let you know how it goes.

 

Out of all the hondas i've worked on, and thats quite a lot. I have not had major problems on removing any bolts or nuts. As long as you have the right tool and right leverage, everything should come out pretty smoothly. Good luck and stay safe.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lv6l &raquo;</TD></TR><TR><TD CLASS="quote">Out of all the hondas i've worked on, and thats quite a lot. I have not had major problems on removing any bolts or nuts. As long as you have the right tool and right leverage, everything should come out pretty smoothly. Good luck and stay safe.</TD></TR></TABLE>

Now that is very good to know and quite comforting at that. I am imagining all of this horror stuff about the bolts from hell and maybe it does not have to be that way. We could not do the job today because he got home late and got to bed around 4 or so and his brother was so happy to get the Del Sol that he took the key and put it on his keyring and took it to school with him today so we were screwed now until tomorrow.

He called me later today to say that he did get the key already and would squirt all of the Del Sol nuts and bolts with penetrating oil to loosen them up a bit overnight. So tomorrow morning I will go and see if we can get this done maybe by lunch or shortly thereafter, I hope. I had a full tank of gas this morning,, did not do that much driving, and am already at 3/4 of a tank almost. This sucks. That sensor has GOT TO GO man.

Thanks for your help, will let you know how it goes.

 

A cracked exhaust manifold will affect your mileage and here is the reason...

With the crack you will be getting O2 thru it, Now the O2 sensor will detect this extra O2 and give that info to the ECU. Now the ECU see's extra O2 in the exhaust and thinks wow I am lean so I am going to richen up the mixture.

It depends on how big the crack is of course.

And another...With the CEL on the ECU will richen up the mixture also to protect the other parts of you emissions equiptment.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by thesmogman &raquo;</TD></TR><TR><TD CLASS="quote">A cracked exhaust manifold will affect your mileage and here is the reason...

With the crack you will be getting O2 thru it, Now the O2 sensor will detect this extra O2 and give that info to the ECU. Now the ECU see's extra O2 in the exhaust and thinks wow I am lean so I am going to richen up the mixture.

It depends on how big the crack is of course.

And another...With the CEL on the ECU will richen up the mixture also to protect the other parts of you emissions equiptment.

</TD></TR></TABLE>

Ahhh, you mean when I get a new oxygen sensor in the car, the crack will let air into the manifold, throwing off the sensor reading, I get it. Well, the mechanic just called, he should be at the shop in about 45 minutes and so I will meet him there and we will take both the manifold with known good sensor already on it and put it on the Civic with new gaskets. That should pretty much take care of that problem.

And to think, all I wanted to do was change the lamps to get my cruise control working and now all of this and still no cruise control.

The mechanic says the tranny fluid is kind of brown and should be changed. I notice that this car tends to slip down to a lower gear by itself and then come back up again every now and then. This is not good and I am sure new fluid is not going to fix that problem. Oh well, one emergency at a time I guess.

I so wish that I still had the Del Sol. That car had tiny problems that were easily fixable and never gave a bit of engine trouble. This car had a full tank on Sunday night and now it is Tuesday morning and I am down to a half a tank already. The Del Sol needle would barely have moved by now. Must be that bad sensor and to think that it must have been in there long enough to burn out the CEL lamp. I bet it is carbon city inside of that engine.

Thanks for your input.

 

Ohmster you write entirely tooooo much, but I read it all. If I were you I wouldn't waste my money getting someone to install an exhasut manifold. The bolts to the head come off very easy because they are only torqued to about 22ft/lbs. As long as you have a jack and a socket set you would have been fine. Also if you're giving him an engine he should do the job free of charge! That's just my opinion.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by spivt11 &raquo;</TD></TR><TR><TD CLASS="quote">Ohmster you write entirely tooooo much, but I read it all. If I were you I wouldn't waste my money getting someone to install an exhasut manifold. The bolts to the head come off very easy because they are only torqued to about 22ft/lbs. As long as you have a jack and a socket set you would have been fine. Also if you're giving him an engine he should do the job free of charge! That's just my opinion.</TD></TR></TABLE>

Ditto to that. I didn't know you gave him an engine. I didn't know he is charging you. I thought he is doing all of this for free. As a mechanic myself, I do not think this job is big enough to charge people. Especially if a friend of mine is asking me as a favor. I guess I didn't read all of it like spivt11...hah

 

I use a 10 inch crescent wrench to remove the o2 sensor. The exhaust maifold bolts really aren't that hard to get off. The replacement of the manifold and the o2 sensor are extremely straight forward. And I think the reson why, Marcello, thought you neded a new o2 sensor was because he didn't want to have to buy a new one for his brother. That's just my take on the situation.