how do you know if this is bad or not, my car runs rich when you get on it, when your in vtec, normal driving it doesnt smoke, also my gas milage sucks, does this throw a cel, when i first drive my car for the first time of the day, i get a cel, turn the car car off then on again and no more light, doesnt happen everyday either, could my blox intake make me run rich?

 

if your o2 sensor wad bad you will get a check engine light

 

see thats what i thought, but i had a couple of people tell me that it wont throw a code, could the 02 sensor be going bad and not all the way be bad? to make it run rich but still be good enough not to throw a code? either way i think im going to replace the sensor anyways since it is 12 years old, i guess il see what happens

 

would it be the o2 sensor that controlls when the fan turnes on and off? my friends fan quit working automatically so we put it on a switch and it works now, but wont work on its own like it supposed to...

 

dude your in the same shit hole as me, we both have the excact problem, replacing my o2 sensor this friday, if it fixes it i will tell you, also CEL goes off when i turn off the car, its ok for the 1st 30min of the 1st drive of the day, then it comes on again when i push it, so see same problem, same thing with the gas mileage, full tank will last me about 3days.... used to be like 5days...

 

well let me know how it does, what kind of sensor are you going to use? an oem honda one or one from an autozone or something like that, well mine is fine after i turn the car off and then back on, its just when i first get into it when its first started for the day

 

ill be geeting one from autozone, its about $110 i think, will get it this friday, sure will tell you if it helped or not.with my car its when it warms up a bit that it happens, turn off for a few minutes then start it again it runs great, so lets see if it is the o2 sensor...

 

If you can time it right.....get down to autozone with the CEL on and they can use a diagnostic tool to get a code. And best part is that it is free. I had both o2 sesors damaged because of the shitty shop that installed my header(MIDAS). The car really doesn't seem to run much different except for gas milage and possibly running rich. Get the code then you can tell which O2 sensor it is. There is one pre-cat and one post-cat. Also....go with Sohfast.com or HAP recycling to get an O2 sensor. Alot cheaper that way. O2 sensors don't go bad very often or quickly unless physically damaged.

 

fuck man i tried that myself, then one of on South Kingshighway, and "Linking Error" appeared, ordered it today, so will have it installed saturday will tell you the results man, also MeanGreen96 which part of St.Louis do you live at man...

 

I live in Wildwood, Ballwin area and work out in Fenton and commute to UMSL in NC.

So I'm all over the place.