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  1. 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...
  2. 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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