Check Engine Light Codes Discussion

[timot_one]

I'm not sure how your MAF would be affecting this also.  What they told you about the CAI is incorrect.  They gave you bad advice.  Did you check to make sure you have no vacuum leaks on your TSX IM?  There may be a vacuum port that you didn't block.  My suggestion is to look for a vacuum leak.  If you can't find it, take off your TSX IM and go back to your stock intake and intake manifold.  Then follow the recommendations I gave earlier.  At this point, I'm suspecting your IM and think there is a vacuum leak.

[Mike]

Pulled my code sure enough small evap system leak is the description. I'm going to give the fuel in the charcoal canister some time to dry out.

[fabulous010]

I'm not sure how your MAF would be affecting this also.  What they told you about the CAI is incorrect.  They gave you bad advice.  Did you check to make sure you have no vacuum leaks on your TSX IM?  There may be a vacuum port that you didn't block.  My suggestion is to look for a vacuum leak.  If you can't find it, take off your TSX IM and go back to your stock intake and intake manifold.  Then follow the recommendations I gave earlier.  At this point, I'm suspecting your IM and think there is a vacuum leak.

that is alot of work and i dont have muck to do that right now... but i have cleaned my maf sensor and will install it shortly. i have also disconnected the battery to reset the ecu. i will keep you guys updated.

[fabulous010]

ok i dont want to jinx anything but,... i cleaned up my maf last night, and reset the ecu properly (as per skips instructions) and am happy to report that so far my cel light has stayed off! soo far soo good. i only drove it to work and back but usually when its off it'll come back on, on one of those trips. but it kinda makes sense now. i had no cel light until i installed the tsx im. dirty maf + more air (tsx im) = cel code occasionally comes on. (dirty maf + even more air (tsx im, cai) = cel code always on.
with the maf sensor being all dirty, once i got more air into the air chamber the sensor went hay wire and the more air i shoved through the more the cel light came on. even though im not 100%sure this was the cause or cure, i am really hopefull and somewhat excited. just sucks that i spent $150 on getting some idiot to "diagnose" it (if you want to call it that) and a defouler which i never heard of.

should i keep the defouler for when i install an aftermarket exhaust. can i use it then?

[CrackerTeg]

I'd keep the defouler for the aftermarket exhaust just in case. Some people don't use it, but others (like Tim) need it so they're not constantly throwing codes from the increased airflow.

[timot_one]

Actually, I don't need it now.  I just turn off that sensor in kpro.  I've had a bad O2 sensor in my cat since February.  The only reason why you would need to use a defouler for the O2 sensor in your cat is if you have a high flow cat or no cat.  Other than that, an aftermarket intake, header, or exhaust system should not affect it's performance.  The only reason why I had to use the defouler is because I have a high flow cat.

[fabulous010]

damn i will try to sell it and if i need one later on then i will pick one up again...
on a bad note my cel light popped up again. sigh... i am soo fed up with this. i will try to plug a scanner to see if its the same code

[fabulous010]

i pulled the code from my car last night. and its the same freagin code, p0171 too lean, bank 1??

[CrackerTeg]

If you tried what Tim suggested, I'd say you go with what I've been saying all along dude. Replace the sensor and get it over with.

[fabulous010]

tried to resolve my cel code issue i was having. turns out it was that stupid little nipple at the bottom of the tsx im. tim you right all along about the vacuum leak. i did listen to you and checked everything else but that! lol i checked all the hoses and even the gaskets and injector base. i just didnt check the vacuum hose at the bottom of the manifold and that stupid little nipple. stupid of me. but oh well. you live and you learn

[CrackerTeg]

Hmmm, live and learn dude. I'm glad you got the issue resolved without shelling out for a new o2 sensor. Defouler, what a crock of shit.

[timot_one]

I think that was like one of the first things I asked you, wasn't it?

[fabulous010]

I think that was like one of the first things I asked you, wasn't it?

it was i had checked everything else. i even checked to see if the injector plate and manifold was loose. i checked the hoses going into the intake. i didnt check that nipple becuase i knew i put it on there good. but what had happened was that the tip of it cracked like a lid. either way i appreciate the help tim. but its a good thing i didnt just go out and switch the 02.

[timot_one]

Quite true.  Rubber nipples are a lot cheaper than O2 sensors!  Glad your shit got resolved though.  Those Honda techs really know their stuff!!

[fabulous010]

Quite true.  Rubber nipples are a lot cheaper than O2 sensors!  Glad your shit got resolved though.  Those Honda techs really know their stuff!!

hahaha i know! thank god i have a shop that i worked part time at and i can trust with my car or i would be screwed!
damn those little nipples, they will get you in the end!