no_hack/trackrats

please help!!! I am at my whits end. I am new to automotive forums, but it seems like there is plenty of information here.

ok i rolled my truck on holloween, and smashed my cab. when it rolled it rolled all the way back onto the wheels and never stopped running. my truck had no electrical or mechanical problems until after i changed the cab. with my new cab on, a new fuel pump, and cleaned injectors and carborator it will start for about 3 seconds and then die, every time. i have sufficient fuel pressure, there are no pinched fuel lines or any shorts in the fuel pump circuit. the fuel filter is fine. it can't be a fuel shut off switch can it? it ran after the accident. what else can i do?

here are some other things that may be relative; half my fuse box has no power, fuel pump fuse is good and has power, headlights turn signals and dash board are not working. the new cab is from a 94 gmc sanoma. i used the wiring harness that came with the sanoma cab. it has a few differrences such as there was a male connection instead of a female connection, so i cut the old one and spliced it to the new. also there was a connector with like 20 wires in it with a differrent plug than the one i needed. so i pulled out the wires i needed and cut the plug from the old harness and reattached. So, did my wiring harness shortcut bite me in the ass, or is that a completely differrent issue, or what?

RahX

you should check all of your grounds. bad grounds can cause a lot of problems.

movin2stereo

I do believe the 98 and 94 electrical system and fuel systems are different.I hate to say it but you should have transfered everything over.

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rlith

You're going to have to go over the entire harness with the shop manuals and check every last thing...Sorry man.. You should have gotten the donor harness.

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95 s10 Blazer, EGR Mod, ZQ8 Steering box mod, 99 Center console shifter mod and more... See everything at www.pghconsulting.net/teal

no_hack/trackrats

do you know if the wiring harness for the 94 sanoma is compatible with a 98 s-10?

whitetrash982

probably not , totally diffrent engine, so id imagine totally diffrent harness , get a harness froma junk yard , surprized it even runs honestly , but to me , if it were something say you dident have thos probs , id check the mass air flow sensor , and the intake boots , amke sure theres not leaks past the MAF sensor , and see if the sensor itself is getting power

rlith

Nope...Not without a lot of rewiring anyway..

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95 s10 Blazer, EGR Mod, ZQ8 Steering box mod, 99 Center console shifter mod and more... See everything at www.pghconsulting.net/teal