Code 45 came up, O2 sensor rich. Now in the past i've thrown a code 13..which went away...now the code 45. What can cause this all of a sudden? MY injectors are on their way out...holds pressure when running but takes about 10 seconds to lose all pressure after turning the car off. So what do u guys think it is? The bad injectors, bad O2 or the ECM(i've thrown a code 13 and code 42 like 2 months ago, did nothing about it and they haven't returned, now i have a code 45, maybe the ECM is bad?)

What do you guys think???

TIA

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*89 Trans Am GTA
*Moderator at www.transamgta.com

To hell with the GM vs Ford war. We must unite, as brothers to fight the plague that is overtaking the world...RICE

Tony

 

well, part of the problem was the ECM, see i wasn't hitting closed loop AT ALL, thats taken care of, now can ****ty injectors cause me to run rich? i heard that injectors that don't spray correctly messes up the atomazation and cause the fuel to not entirely burn...any further help would be great

 

If between your "setup" (injectors & fuel pressure) and the "calibration" in your eprom, the ECM cannot correct (it is limited to BLM/INT of 108/80) - then you will throw a Code 45 - Rich O2.

So YES, bad injectors that are leaking can cause this.

 

Thanks man,i figured that the injectors would cause the problem, i'll try to swap them out ASAP