Random check engine light
- Thread starter Bryan
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s14_slidewayz
Spectator
do you have an aftermarket intake?
If you are not sure or can not rationalize your response please do not reply to someones technical thread about their automobile trouble shooting. If your response sounded something like this it would be helpful....
" I took my car to a mechanic with a similar issue, the check engine light would periodically turn on and off depending on the day. The mechanic replaced the front o2 sensor and it fixed the problem. You might want investigate a faulty o2 sensor as the culprit to your problems "
even though you are a newb, you would be sharing your valuable information, not just guessing about why his check engine light comes on when ever it feels like it. I know you are young in age so im not trying to scare you into not posting, but its makes it harder for the thread starter to find quality information if 90% of the forum population guesses about his problems. Just keep it smart.
To the thread starter:
I would find a tutorial on how to read engine codes by switching the diagnostic switch on the ecu and counting the flashes to determine what engine code you are getting. Find a good tutorial online and report back what codes the ecu is receiving. While you have the hood open, double check the engine grounds on the intake manifold near the throttle body and on the back of the head on the drivers side. Dose the car drive fine while the light is on?
s14_slidewayz
Spectator
then one option is the 02censor that is glitching or you might of goten a little bit of water in the intake especially if its' a cai. If the check ingine doesn't go away then it could be water on the 02censor, just take off the censor from the intake, dry it put it back on, then disconect the bettery, wait 5 seconds, and then connect the batt. again. If that doesn't work then your 02censor is bad and needs to be changed. If not then it could be something else, but try that for now.
Emeru
Driver
Understood, sorry guys, wont happen again
and sorry about the educated guess s13silviaslider
bro, what the fuck are you talking about?
If your talking about the mass airflow sensor, it would have cleared the issue up with one key cycle. Or it would have killed the sensor and the car would not rev over 2500.
No
s14_slidewayz
Spectator
yea my bad the mass air flow censor; sorry didn't read that the car drove fine with the check ingen on. Anyways if it drives fine with it on then it could be the 02censor. 
no problem. I asked my other friends about my problem and they all told me they are 99% sure its the O2 sensor. To answer a few of the questions You guys asked, Yes it drives perfectly fine and Yes i can rev WAY past 2500 rpm. If the problem is the O2 sensor then does anyone have any idea how much one of those would be and where I could buy one???
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