i have a check engine light on. it just randomly turned on and the car has turned off twice while in neutral.

i have a tuned greddy turbo kit. when i went to autozone i was able to pull the code....


po171

fuel system too lean bank1

probable cause

1-large vacuum leak
2fuel system concern
3-ignition system concern
4-MAF sensor faulty
5-HO2S/AF ratio sensor fault


by the way the car has been randomly making popping sounds on low rpm, like the unburned fuel sound... also it sounds different when i accelerate it feels like there a exhaust leak, i rechecked everything and i don't feel any coming from the test pipe or the exhaust manifold.

 

Is it tuned? I would say check the stuff listed. Check the whole kit for leaks.

 

Oh the problems with piggybacks.
check the wire connections first.

 

i have checked everything to make sure all is connected right.