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uneven idle

Discussion in 'Boxers/TR/M' started by B512M, Jan 25, 2009.

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  1. B512M

    B512M Karting

    Mar 26, 2008
    111
    flood city
    Full Name:
    Christian
    #1 B512M, Jan 25, 2009
    My friend's 512TR idles unevenly compared to my car. The exhaust stinks too. I'm thinking cats or O2 sensors. He has replace ignition leads, but hasn't fix the problem. Car has not run for over 6 mths. Anyone has any idea what could be the problem?
     
  2. sparta49

    sparta49 F1 Veteran
    Owner

    Mar 3, 2001
    7,804
    LA
    Full Name:
    Frank
    #2 sparta49, Jan 25, 2009
    Last edited: Jan 25, 2009
    Dirty , clogged injectors and fuel filters, fouled plugs or it is just upst that it sat for 6 months, try an Italian tune up first
     
  3. carguy

    carguy F1 Rookie

    Oct 30, 2002
    3,425
    Alabama (was Mich.)
    Full Name:
    Jeff
    #3 carguy, Jan 25, 2009
    Last edited: Jan 25, 2009
    To quote......"My friend's 512TR idles unevenly compared to my car"

    Can you describe what you mean by "uneven"....? Are the idle rpms fluctuating? Is there mis-firing? A combination of both? A rotten egg smell could be a disintegrating catalytic convertor, or somtimes bad gas. Not driving these cars regularly doens't help them much either.
     
  4. B512M

    B512M Karting

    Mar 26, 2008
    111
    flood city
    Full Name:
    Christian
    #4 B512M, Jan 26, 2009
    Last edited: Jan 26, 2009
    Can you describe what you mean by "uneven"....? Are the idle rpms fluctuating? Is there mis-firing? A combination of both? A rotten egg smell could be a disintegrating catalytic convertor, or somtimes bad gas. Not driving these cars regularly doens't help them much either.[/QUOTE]
    Obviously, not as smooth. However, not fluctuating and definitely not misfiring when you rev the engine. Not sure how to describe it, but there is a slight vibration, seems like one cylinder is not firing. The car starts easily on first crank though.
    THANKS FOR THE ADVISE GUYS. I WILL TELL HIM TO CHECK ON THESE AND GET IT SERVICE ASAP.
     

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