Thread: over fueling?

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  1. #1 over fueling? 
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    hey guys,my gp 2000 gtp will not run,it fires up then dies,its overfueling really bad.i have gas leaking out of the exhaust manifolds,when i do get it running it smokes really bad.i put a scanner on it and the only thing that shows up is bad ground or short to fuel level sensor,plz note that iremoved the cat,installed sraight pipe with bung for 02 sensor.(rear 02 sensor is in there)i replaced the plugs and wires.my coils tested fine.
    any ideas?plz,i need help
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  2. #2 Re: over fueling? 
    The mod from over yonder TheOtherNick's Avatar
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    Injector could be stuck open.
    01 gtp-big cam e85 dd 78dodge- guzzling fuel 05 cummins- rollin coal
    SMGPFC Two Nipple General
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  3. #3 Re: over fueling? 
    GrandPrix Junkie CTKGP09's Avatar
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    maybe check the voltages on the injectors too
    '04 Chevy Silverado LT 4x4 - intake, headers, full exhaust, zo6 cam, 799 heads, tune, leveled, 33's
    '00 Grand Prix GTP DAYTONA 500 - L36 block, S1X, intercooled, GenV, N*, headers, full exhaust, coilovers, 5 speed swap, stage 3+ clutch
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  4. #4 Re: over fueling? 
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    hi guys.i hooked up a scanner to my gp and the only thing that comes up is short to fuel level sending unit.and that makes sense because my fuel gauge spikes and stays there.so i unplugged the sendingunit(thankyou gm for having a plate in the trunk to get at it)and my fuel gauge is still spiked.so i either have bad wires or the pcm is no good.where is the pcm ground wires located?because it also said the pcm may not be grounding properly.
    let me know what you guys think.
    thank you in advance
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  5. #5 Re: over fueling? 
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    can anyone help me locate a pin out diagrahm for the pcm.would be alot of help.for a 2000 gtp.
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  6. #6 Re: over fueling? 
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    Quote Originally Posted by savannaz34 View Post
    hey guys,my gp 2000 gtp will not run,it fires up then dies,its overfueling really bad.i have gas leaking out of the exhaust manifolds,when i do get it running it smokes really bad.i put a scanner on it and the only thing that shows up is bad ground or short to fuel level sensor,plz note that iremoved the cat,installed sraight pipe with bung for 02 sensor.(rear 02 sensor is in there)i replaced the plugs and wires.my coils tested fine.
    any ideas?plz,i need help
    That's a big problem man! I think you should bring it to the repair shop of car. They are the one that is expert to it.
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