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

 

Hook up a scan tool and observe your O2 sensor signals- make sure they are both switching.