Thread: 1991 G.P SE 3.1 runs sluggish when cold??

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  1. #1 Re: 1991 G.P SE 3.1 runs sluggish when cold?? 
    Donating Users iroc2's Avatar
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    *INTRO PLEASE*


    hmmm interesting.
    do you mean like a miss fire when you say that it has a distinct miss?

    im wondering if theres something up with the injectors or if theres a blockage in the fuel line somewhere that would cause it to run that way. try fuel injector cleaner next
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  2. #2 Re: 1991 G.P SE 3.1 runs sluggish when cold?? 
    SE Level Member mmarx's Avatar
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    I ran 2 Tank Fulls of Injector cleaner through it already.
    This Morning, when it was Cold, I sprayed it with Brake Clean,
    and there was No change again. (while running.) (Possible Vacuum leak?)
    I drove it and it ran Great!?
    I replaced the TPS, this Summer, with a cheap one from O Reilly's
    and I am wondering if this isn't the culprit?? (No Codes though.)
    I am thinking either it is a Intake Gasket leak or something with
    the TPS.?
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