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  • Running Rich

    Just installed stock 3100 in 1990 cavalier ,engine runs great no codes except code 12,my problems is when I'm at full throttle car gets rich and stubble at 3000 rpm ,the thing is I have an external fuel pump so when I turn pump off while it's running car revs quick with no stumble until gas is gone.could this be my regulator holding to much fuel pressure ?

    Sent from my SM-T530NU using Tapatalk

  • #2
    Found the problem, changed wiring harness, all is good with no codes or stalling.went to tracks went 9.5

    Sent from my SM-T530NU using Tapatalk

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