John94

John94

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  • John94
    My 94 sn95 Mustang GT convertible has a rebuilt engine with gt40p heads, new everything engine mechanical & electrical but when cold, starts with over fueling while backfiring some, runs till warm then dies till cool again. I've switched plugs, cleaned the plugs yet results are the same.
    Any ideas?
    9
    94SVTCobra
    over fueling? as in too rich? if so, how do you know?

    gt40 heads? If fuel injected it needs a baseline tune to get running, then tweaked on a dyno session.
    John94
    John94
    My plugs blacken then shut down seaming to flood out and misfire,
    the timing is on.
    I did change the injectors but they were supposably the same,
    It has me scratching,
    LEGALLYFAST
    LEGALLYFAST
    Does your MAF match your injectors? Does your regulator work?
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