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Running rich?

Discussion in 'The Garage' started by inscape, Jul 22, 2004.

  1. inscape

    inscape Registered Member

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    I have an 89 with a 350. Last night after starting it I revved it a couple of times and black smoke came out. So that means it's running rich right? Isn't that contolled by the computer though? So shouldn't it fix itself?
     
  2. dyeager535

    dyeager535 1 ton status Premium Member

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    Did you drive it? If the ECM sees a rich condition too long once the vehicle is warmed up, it will throw a code, assuming the O2 sensor is fine.

    Plenty of things could cause a rich condition though, best to wait until it throws a code, or you put a scanner on it and see what the problem is.
     

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