NOOO!!!

[griftymcgrift]

i was driving to school and my SES light came on. made me mad. then i went to the bank and on the way back to school it went back out. now it came back on and has been on for a couple days. now i gotta go get it tested to see whats wrong...

[deadtrend1]

autozone will scan it for free. Then you post the code up on here and we tell you how to fix it.

[V]

code 666:gremlins

[deadtrend1]

code 666:gremlins
actually its P0666

[griftymcgrift]

cool will do, but now its out again. i HATE intermittant problems.

[deadtrend1]

cool will do, but now its out again. i HATE intermittant problems.

it will still be stored in the computers memory so you can still scan it and see what it was

[NastyEllEssWon]

scan it. my money is on 02 sensor

[griftymcgrift]

ok, i went to advance, and got codes:
P0171- system too lean bank 1
P0174- system too lean bank 2

so the question is, what makes these run lean or read lean?

thanks for the advece
wes

[Stevoone]

Most of the cars I've worked on with both those codes set has turned out to be a vacuum leak. Un-metered air getting into the intake somewhere after the MAF sensor would make it run lean. I usually spray around the intake and around the vacuum lines with carb cleaner. When the idle changes when you spray a certain spot thats where the leak is.

Could be something fuel or sensor related but most of the ones I see turn out to be vacuum leaks.

[griftymcgrift]

cool ill try that tonight. could it be my pcv valve being a lil loose? cause i know its a lil wobbly. the other thing is my car pulls a little bit funny at certain conditions, like if theres a little load and i half throttle and the rpms are around 3000 or so, it kinda like stops pulling for a second, then picks back up. i have been thinking MAF, and this lean thing has me wondering, but ill def. try the vaccum lines first.

wes