Thread: engine swap 3800 sc to same but not burned engine

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  1. #1 engine swap 3800 sc to same but not burned engine 
    SE Level Member roger7's Avatar
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    hey everybody i need help with my gtp 98, my car got burned and i changed the engine the sc and wiring harness
    the problem is that when i turn on the car it turns off but it lasts about 4 secs and i can do this as many times as i turn on the car

    is this wiring problem? or mechanic?
    apparently there is something that protects the engine when it's out of gas is that possible?
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  2. #2 Re: engine swap 3800 sc to same but not burned engine 
    The mod from over yonder TheOtherNick's Avatar
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    Is the security light flashing?
    01 gtp-big cam e85 dd 78dodge- guzzling fuel 05 cummins- rollin coal
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  3. #3 Re: engine swap 3800 sc to same but not burned engine 
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    That was gonna be my question. Sounds like a security issue
    No More GTP for me.

    2014 Chevy Cruze ECO Manual. 40+MPG
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  4. #4 Re: engine swap 3800 sc to same but not burned engine 
    SE Level Member Mike Kopstain's Avatar
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    Check the fuel pump resistor... Bypass it like so and see if the car stays on.


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  5. #5 Re: engine swap 3800 sc to same but not burned engine 
    Turbo is the way to go. BillBoost37's Avatar
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    I see three things possible.

    1. Security light should be flashing and not solid. Solid means security is piss off (I'm right guys, solid is bad ...uh right?)

    2. Maf sensor is bad. Unhook it and you'll probably need a little throttle to get it going and keep it going, but it'll run off a table after a couple of minutes.

    3. Fuel pump resistor. Although i thought this was mostly common once the resisitor had a chance to warm up.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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  6. #6 Re: engine swap 3800 sc to same but not burned engine 
    Bastard Reptile's Avatar
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    Quote Originally Posted by BillBoost37 View Post
    1. Security light should be flashing and not solid. Solid means security is piss off (I'm right guys, solid is bad ...uh right?)

    I'm sorry, this just struck me as hilarious. Almost with a British accent.

    I think that if it flashes it's pissed. A start/run for 2 seconds sounds just like the security feature. You might have to try the 30 learn procedure?
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  7. #7 Re: engine swap 3800 sc to same but not burned engine 
    SE Level Member roger7's Avatar
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    the bypass on the relay worked!! thanks a lot Mike Kopstain, so i just have to buy a new relay?
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  8. #8 Re: engine swap 3800 sc to same but not burned engine 
    Turbo is the way to go. BillBoost37's Avatar
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    No, that means the fuel pump resistor is bad. You can leave the relay that way and be fine. Or you can get a new fuel pump resistor and replace it.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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  9. #9 Re: engine swap 3800 sc to same but not burned engine 
    SE Level Member roger7's Avatar
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    thanks a lot
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