I got codes for O2 and fuel injector failure....replaced O2 sensor, fuel filter, removed and cleaned the throttle body and all that. Car ran but kept throwing codes, no CEL. Next day, CEL comes on and same codes....before I replace the injectors, is there anything else that could be messed up? ECU? Just doesn't make sense why the car ran with codes, and now with CEL it trips the ECU and won't let the car start...resetting the ECU did nothing

Any ideas???

 

Injector wiring? May be a loose pin on your ecu connector or injector plug (happened to me.)

 

do you have a friend with the same ecu that you could swap and see if the ecu is bad

 

I will have to ck the pins on the harness going to the ecu, make sure they are not pushed in...the pins are fine at the injector end

No friends with same car