ENGINE RUNS ROUGH

  • Tiny
  • kerbo2
  • Chevrolet Corvette

Corvette, 1985 tune port new rebuilt 350
engine runs rough, black smoke out the tail pipes

Sunday, September 30th, 2007 AT 11:12 AM

1 Answer

  • Tiny
  • dennyp
  • Expert
  • 1,873 posts

Check for excessive fueling.O2 sensor voltage will be high. Block learn and integrator readings will be low in an attempt to compensate for excess fueling.

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Sunday, September 30th, 2007 AT 12:43 PM

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