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  1. S

    Catastrophic failure

    Update: I pulled the PCM, and I still think it's the problem, seeing as it has what I think to be rust or some kind of corrosion on it. I dunno, I'm going to get a new one tomorrow, so I'll know then. It was the PCM. Replaced it with a '92 PCM and it's running fine now.
  2. S

    Catastrophic failure

    I ran the KOEO tests, and it basically gave me the same codes. except the ones that are KOER only, I forget which ones exactly, though. Edit:Reran KEOE.Codes are as follows (in this order) 159 - MAF 159 - MAF again 177 - heated o2 sensor 452 - vehicle speed sensor 177 - o2 sensor again 452 -...
  3. S

    Catastrophic failure

    Okay. so, it is agreed that the problem has SOMETHING to do with the PCM, be it wiring, power, the PCM itself?
  4. S

    Catastrophic failure

    Why would it work cold, but not warm?
  5. S

    Catastrophic failure

    Greetings all. I have a weird problem. When the car is at operating temperature, it runs horribly. It's missing, surging, and spews black smoke (unburnt gas). Odd thing is, when I start it cold, it's fine, no surging, no missing, exhaust is normal. I pulled the KOER codes(no codes until it's at...
  6. S

    Noob question...but...

    My 93 sport was running a little on the...not so good side...Hesitation on the low end,slight surge and every once and a while,a CEL. After a couple months of this,I finally got around to putting a scanner on it,I got a 137 and a 538,02 sensor,bank 2,and a insufficent RPM change during ignition...
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