joshdoty23

So i have a 2000 Camaro z28, about e year ago i put a cold air intake in and it started sputtering alittle on. then it went away then about 5 months ago i deleted the cats put a three inch exhaust all the way through.... and it will bog out superbad and not go above 2400 rpms and almost die. then sometimes it hauls *****. i have hooked up my programmer and im throwing 7 dtc's. im throwing both oxygen sensors after the cats and both knock sensors and my mass air flow sensor says low circuit and also high circuit at the same time.... and also egr sensor low. i have no idea what is going on and allot of mechanics around me have no idea either. i need some help please!!! lol

Injuneer

The after-cat O2 sensors are there to detect whether the cats are there and working. You have codes for the two after-cat sensors because you deleted the cats. You have to get O2 sensor "sims" to plug into the harness in place of the after-cat O2 sensors, or you need to have the codes "programmed out" of the PCM.