i was driving today check engine light came on scanned with obd2 scanner it was po170 and po 171 system to lean (bank1) and fuel trim malfunction i got 96 civic ex with vtec check all the hoses for vacume leaks did find any and these codes are just driving me insane any help would be appreciated thanks
help help check engine light code po171 and po170
- Thread starter CIVIC12345
- Start date
you probly got a bad o2 reading or something.....any fuel modifications to your car?
no all stock only mods are intake headers cat back