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carb to tpi swap

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Old Dec 26, 2006 | 03:02 PM
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carb to tpi swap

I have a 91 rs camaro. It was origonally 305tbi and I swaped that out for a 350 carburetor. I now am swaping the carb out for tpi. I have the ecm wiring harness and setup out of an 86 iroc. I changed the fuel pump already and have the whole setup finished. I have checked the fuel pressure and its set where it should be and i am getting a spark, but the motor wont start. I think its is the injectors that are not gettin any power. Does anyone have any solutions for my problem?...does it have something to do with my fuse pannel? Thanks for the help
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Old Dec 26, 2006 | 06:59 PM
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Each bank of injectors gets it primary power supply through the INJ1 and INJ2 fuses in the main interior fuse panel. If you don't have those circuits, it isn't going to run.
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Old Dec 26, 2006 | 10:34 PM
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so if i run power from those two spots on the fuse pannel to the harness where my injector wiring comes in...will the injectors when they are supposed to?
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Old Dec 26, 2006 | 10:37 PM
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From: Hou. TX
Car: 86 TA, 91 B4C
Engine: 5.3, 4.8
Transmission: 4L80 4000, T56
Axle/Gears: 4.30 M12, 23.42 10 bolt
Just a suggestion, verify timing.
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Old Dec 27, 2006 | 09:28 PM
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From: Colorado
Car: 86 Jeep CJ-7
Engine: 350 TPI
Transmission: Turbo 350
Axle/Gears: Dana 44 3.73
Spray some starting fluid and see if it will try to start if it does then test your injectors and make sure they are pulsing using either a noid light or a multimeter first. Had kind of the same prob here -->

Last edited by ETERNAL X0R; Dec 27, 2006 at 09:35 PM.
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