i have an 88 crx with a b16, all stock and it waste gas like no other! i just did a full tune up 1week ago. when i say full tune up i mean everything. only getting like 140 on a full tank.

 

check fuel pressure? mine was doing that it turns out my injector O-rings were all bad leakin gas thorugh top of injectors

 

Bad 02?

 

dont expect the greatest gas mileage if u beat the crap out of it all the time, anyways sounds like u have a problem good luck fixing it

 

i changed my 02, and fuel injector o- rings. hell no i dont drive fast, it will waste more gas

 

Plugged cat? I know a friend who had a Jeep with a plugged cat (glowing red!), didn't impact driving noticably due to it being a gradual effect. I'd also check for an odd exhaust leak, if air was getting in, it would sense a lean condition, dumping more fuel in.

Otherwise it's your driving style. Do you speed up gratually (mostly), or is it just WOT for you? It could also be an issue with loosing cyl pressure (bent valves, bad rings), making you use more gas to get the same power. And did you gap the new plugs correctly?

 

140 miles to tank is bad. have you checked you timing, both distibutor and cam to crank timing. I've had issues before where the exhaust cam was a tooth or three off. dont know why it happened but it did. may be worth it to check it out. i beat the crap out of my b16 and have never ever gotten that bad of gas mileage unless the timing was off. check your timing marks just to be sure.

 

ya i checked my timing its perfect. i have no cat straight pipe and no exhaust leak. i drive regular **** at 3,500 and on freeway only go about 70mph. i did a compression check and the numbers where 220,215,220,210. unless my gague doesnt work properly. is there a way i can find out with out running my car all the way in till there is no gas. When my car reads E i go fill up and when i open the gas cap you get that air noise that usually means you low on gas. correct me if iam wrong.

 

i get that kind of milage too but i dont know if it matters but j1 tranny is killing me on the freeway

 

There must be something wrong, that's like 14-17 mpg...consider replacing your o2 sensor, a dead 02 sensor could have you running way rich.

 

Are you sure that when the gauge reads E, its actually almost out of gas?

I ask because my roommate's HF, when he goes to fill up, will only go to half a tank. The gauge and/or sender is messed up, and it will go way below the E before it actually needs gas.

 

i have a ys1 tranny. i got a new one, denso took it back twice cause i thought it was that. ya that mileage sucks A . i drive a 100miles to work and school a day. its putting a big dent in my wallet. my del sol is in the shop getting the rear quarter panel replaced, that gets 320miles to a full tank with a b16 also. do you think its could be the gas tank being to small?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr_CRX &raquo;</TD></TR><TR><TD CLASS="quote">Are you sure that when the gauge reads E, its actually almost out of gas?

I ask because my roommate's HF, when he goes to fill up, will only go to half a tank. The gauge and/or sender is messed up, and it will go way below the E before it actually needs gas. </TD></TR></TABLE>

Good point.

 

How many gallons do you put in? Or if you dunno how much money and how much per gallon? You should have a 11.9 gallon tank, but mine fills up to 9 something from empty.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by delsolb16 &raquo;</TD></TR><TR><TD CLASS="quote">my del sol is in the shop getting the rear quarter panel replaced, that gets 320miles to a full tank with a b16 also. do you think its could be the gas tank being to small?</TD></TR></TABLE>


It's not always the best to gauge mileage by how much you get "to a tank". Measure it by how many miles you have gone by how many gallons you have used.

 

you have to do it by tank, after you get your total you divide it by you tank size and then you get your answer.im pretty sure every body knows that not saying you dont. del sol 26.6 miles to the gallon. back to the subject i put in 8 1/2 gallons of gas and the needle does go up to the top.well to the F, oh ya when i fill up i fill up to the rim, and i still get sorry *** gas milage. i dont know if that matters. HELP!!! i wasted 140 bucks in a week already.

 

Uhh, no, unless you sputter into the gas station on fumes each time you fill up because you ran the tank dry.

Here's how you do it (preferrably at the same gas station and just do it at the first "click" off, instead of topping off, for best results):

1.) Fill up till it clicks off. Don't top it off.
2.) Reset your trip odometer.
3.) Drive normally until you need gas again.
4.) Fill it up until it clicks off. Don't top it off.
5.) Check how many miles are on your odometer, and divide that by the # of gallons shown on the pump/reciept.

Tank size has nothing to do with calculating your gas mileage.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr_CRX &raquo;</TD></TR><TR><TD CLASS="quote">Uhh, no, unless you sputter into the gas station on fumes each time you fill up because you ran the tank dry.

Here's how you do it (preferrably at the same gas station and just do it at the first "click" off, instead of topping off, for best results):

1.) Fill up till it clicks off. Don't top it off.
2.) Reset your trip odometer.
3.) Drive normally until you need gas again.
4.) Fill it up until it clicks off. Don't top it off.
5.) Check how many miles are on your odometer, and divide that by the # of gallons shown on the pump/reciept.

Tank size has nothing to do with calculating your gas mileage.</TD></TR></TABLE>

Damn straight. I figure your b16 should be doing a lot better than 26 too.

 

na no sputtering. ok ill try that. good looking out! my del sol is only a 10 gallon tank. 26 is not a good number? i have a itr tranny on my del sol. what should i do about my crx?

 

Dude I know with a b18c1 in his del sol gets 35 ish. And i've heard of the b16s getting around that too in rexes.

 

Wasting gas that way.

What ECU are you running and is it chipped or not?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by delsolb16 &raquo;</TD></TR><TR><TD CLASS="quote">my del sol ... that gets 320miles to a full tank with a b16 also.</TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by delsolb16 &raquo;</TD></TR><TR><TD CLASS="quote">del sol 26.6 miles to the gallon. </TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by delsolb16 &raquo;</TD></TR><TR><TD CLASS="quote">my del sol is only a 10 gallon tank. </TD></TR></TABLE>


What kind of mileage does your del sol get, because 10 x 26.6 doesnt equal 320

 

sorry i added that wrong i get 32. my gear ratio is short. 98 spec itr tranny. loving the tranny. all stock. p30 is the ecu im running. i ran a 14.5 with an intake. no other mods, i know thats not fast. i feel like my cars suck up alot of gas now. but that dude with the b18c in his sol got like 35? that sounds to high.

 

That was his highway, I dunno what he normally gets, I can't think what tranny he has either, lemme see...

edit: meh, I dunno, ran 3k at 65 mph is the best I can say.