Hey everyone, i have a question, and hopefully some one will have some ideas, its about my mpg, they have dropped alot.. well, i think alot, like 60 miles, and i dont know why, first off the list of mods,
Injen intake, magna flow cat-back, MSD Blaster SS with the msd sci, 10.2mm spark plugs, and some denso iridium plugs.. thats it, the only thing i can think of, i noticed after i broke my O2 sensor, it went down, but i put a new one in.. (Not OEM) and it doesnt seem to have gone back up? any thoughts? thanks alot!

 

Try resetting your computer.

Was it a Bosch sensor? Bosch is pretty good.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Poop111444 &raquo;</TD></TR><TR><TD CLASS="quote">Try resetting your computer.

Was it a Bosch sensor? Bosch is pretty good. </TD></TR></TABLE>

No sir. Bosch sensors are trash. This could be your problem if it is a Bosch sensor. Just get another OEM sensor. Either from a junkyard or the classifieds forum on here.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ricey McRicerton &raquo;</TD></TR><TR><TD CLASS="quote">

No sir. Bosch sensors are trash. This could be your problem if it is a Bosch sensor. Just get another OEM sensor. Either from a junkyard or the classifieds forum on here.</TD></TR></TABLE>

Please explain why a Bosch O2 sensor is "trash". Please don't just say "because they are" either.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hybrid93Eg &raquo;</TD></TR><TR><TD CLASS="quote">

Please explain why a Bosch O2 sensor is "trash". Please don't just say "because they are" either.</TD></TR></TABLE>

Because they are not as sensitive as an OEM Honda 02 sensor. I bought one to replace my stock 02 when it went and immideatly had problems with it. Bosch 02 sensors for a Honda application are trash as I said before.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ricey McRicerton &raquo;</TD></TR><TR><TD CLASS="quote">

Because they are not as sensitive as an OEM Honda 02 sensor. I bought one to replace my stock 02 when it went and immideatly had problems with it. Bosch 02 sensors for a Honda application are trash as I said before.</TD></TR></TABLE>

I have been running one in my B17 hatch for quite a while with 0 problems. I even replaced it with a spare OEM one I had laying around when troubleshooting an issue, and it changed nothing. I find no reason at this time to agree with your claims.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hybrid93Eg &raquo;</TD></TR><TR><TD CLASS="quote">

I have been running one in my B17 hatch for quite a while with 0 problems. I even replaced it with a spare OEM one I had laying around when troubleshooting an issue, and it changed nothing. I find no reason at this time to agree with your claims.</TD></TR></TABLE>

Well, I really am glad that yours works correctly. Mine, on the other hand did'nt and I was just trying to help out a fellow HT member. to you for having a discussion with me about this topic instead of just blowing me off!!

 

the site i bought it at says they carry "Walker, Denso and Bosch" also, something else i forgot to mention, im actully thinking it is the o2 sensor.. cuz, i have noticed black (is it called carbon??) on the back of my bumper above the muffler, which was alot worse before i got the new sensor, but, i would think a new one would have completely stopped that, because that is a sign of it running too rich right? i dunno, this sucks though, i dont want to have to spend $160 for a new one! after i just bought a new one

 

I have soot on my bumper above my exhaust but it has to do with running boost and no cat. Check on your spark plugs to see how you are running. Tan=perfect, White=lean and Black=rich.

EDIT: You don't have to pay 160 bucks man. Hit up Eli_Vang in my signature, he always has some!! He'll sell you one for like 55 bucks or so, just tell him I sent you!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ricey McRicerton &raquo;</TD></TR><TR><TD CLASS="quote">

Well, I really am glad that yours works correctly. Mine, on the other hand did'nt and I was just trying to help out a fellow HT member. to you for having a discussion with me about this topic instead of just blowing me off!!</TD></TR></TABLE>

You seem a bit touchy. I wasn't trying to **** you off or anything. Just saying that simply because one person has a bad experience with a product doesn't make it "trash". Bosh makes very good sensors and I know many people run them day in and day out without any trouble.

The black residue on your bumper does not mean your O2 is hosed. If the O2 trueley was hosed, you would be tossing codes. If you suspect its causing problems, hook a volt meter up to it and go for a spin. You can look at the voltages it reads and tell if its sweeping correctly or not. I had the black carbon buildup on the bumper of my 93 coupe running nothing more then I/H/E.. I know for sure it was a bit rich, but I also know for sure there was nothing wrong with the O2 sensor. Test it first, then determine if it is your problem or not. No sense in replacing sensors just off a hunch.

 

no no, i already replaced it.. i broke my old one, so bought the new one, im just wondering if its not working as well as an oem, because something is making it run rich, and losing gas mileage.. i just dunno what it could be, its not a HUGE problem, just find it strange.. also, in reply to checking the plugs, what do you mean check the color?? and they are brand new plugs too..

 

&lt;---- Bosch o2 here...no problems at all, are you sure you wired yours correct?

 

heheh, no wiring man, just plug er in...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hybrid93Eg &raquo;</TD></TR><TR><TD CLASS="quote">You seem a bit touchy. I wasn't trying to **** you off or anything. Just saying that simply because one person has a bad experience with a product doesn't make it "trash". Bosh makes very good sensors and I know many people run them day in and day out without any trouble. </TD></TR></TABLE>

I promise I'm not offended, I was just trying to share my experiences with the Bosch 02 sensors. Many others on this board will agree with me that an OEM 02 sensor is the only way to go. Mpir3 I am sure that mine was wired correctly, and I have replaced it with a techedge 1.5 now.

 

what kind of problems do ppl have with the bosch ones? also, i like your name
dont you hate it when you mispell stuff and feel like a moron ;p


Modified by aphex23 at 8:33 PM 10/26/2003

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by aphex23 &raquo;</TD></TR><TR><TD CLASS="quote">what kind of problems do ppl have with the bosch ones? also, i like you name </TD></TR></TABLE>

Hahah thanks, let me see if I can find the last thread about this. We seriously have one like every week.

EDIT: Heres a pretty decent one https://honda-tech.com/zerothread?id=658673

 

so do you guys think the sensor would drop my mpg that much? or could there be something else doing this?

 

Yes a fualty 02 sensor can drastically reduce your miles per gallon. If you did'nt reset your ECU after replacing the 02, you could still possibly be running in safe mode, which will drop your gas mileage.

 

hmm, wouldnt the ecu eventually reset it self? ive had the new o2 sensor for.. i dunno, 3 weeks? and wouldnt disconnecting the battery reset the ecu? i just put the MSD stuff in and had to disconnect the battery.. if not, i guess ill have to pull the fuse, lemme me bud thanks!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by aphex23 &raquo;</TD></TR><TR><TD CLASS="quote">hmm, wouldnt the ecu eventually reset it self? ive had the new o2 sensor for.. i dunno, 3 weeks? and wouldnt disconnecting the battery reset the ecu? i just put the MSD stuff in and had to disconnect the battery.. if not, i guess ill have to pull the fuse, lemme me bud thanks! </TD></TR></TABLE>

I would toss the MSD. And yes, the ECU will relearn within that time.

 

I would just pull the fuse and reset it to be sure.

 

yes i got a new o2 one wire too and my gas mileage has dropped alot.. i got a new one cuz i didnt pass smog when the new one went in i passed but my mpg sucks

 

hah, toss the msd stuff i just paid $300 for? yeah right!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by aphex23 &raquo;</TD></TR><TR><TD CLASS="quote">hah, toss the msd stuff i just paid $300 for? yeah right!</TD></TR></TABLE>

Hate to break it to you, but unless you have one helluva crazy setup, you did'nt need that MSD stuff. All that you've done is add one more aftermarket thing to your car that we can't help you diagnose.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ricey McRicerton &raquo;</TD></TR><TR><TD CLASS="quote">

Hate to break it to you, but unless you have one helluva crazy setup, you did'nt need that MSD stuff. All that you've done is add one more aftermarket thing to your car that we can't help you diagnose. </TD></TR></TABLE>

Its doing two things for you. Jack and ****. The stock ignition setup, contrary to popular belief, will work just fine.