Really need help
I have an engine swapped car with a 5.0 from a 90 gt. It has the a9p ecm and a t5 manual trans. The car ran perfect for a long time then randomly it started running a bit rough and a cel came on. Codes are 67, 81 and 82 with a 66 memory code. Besides the egr all the smog stuff is gone. The car starts no problem. When its idling its a bit sporadic but will sometiems level out after a minute but is a bit choppy and not as smoth as it was. The pcm appears to be ignoring the maf sensor completely. If I unplug either the maf or iacv there is absolutely no change in the idle. I checked best i could for vacuume leaks, found one at the hose connecting the pcv valve but fixing it gave no noticeable change. The tps is properly set. I checked continuity on the maf harness wires to the pcm and they are all good. 12v power to maf is good and grounds are good. While idling the maf signal wire is sitting around .95 to just over 1v. I opened the pcm and found 2 capacitors were leaking so I replaced all 3. However the one furthest from the plug leaked to the small 8 pin chip next to it and caused a bit of corrosion. The traces appear to be good but idk if thats causing my issue or not. I have a screened maf housing and its currently setup to have no extra turbulence before the sensor. Im losing my mind over this thing lol. I want to rule out any other possibilities before replacing the pcm because of the price. I tried to find someone local to me in Oregon with one i could test in my car but no luck yet. Any help would be really really appreciated.