LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Car runs horrible

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Old 06-02-2006, 08:07 PM
  #16  
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Re: Car runs horrible

I replaced the maf sensor today and it didn't help. I'll cut the cat off and replace the o2 sensors next I guess.
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Old 06-02-2006, 08:23 PM
  #17  
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Re: Car runs horrible

my car did the same thing...it was the 02's. replace them with ac delcos
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Old 06-02-2006, 08:39 PM
  #18  
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Re: Car runs horrible

Running too rich = front o2 sensors
Massive air sucking = vac leak

or faulty MAF or something similar
Lots of buildup in the cylinder will cause black smoke.
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