92 camaro 305 tbi wont run unless alternator unplugged
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Car: 1992 Z28
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92 camaro 305 tbi wont run unless alternator unplugged
I've got my buddies camaro in my garage after the shop he had it at couldn't figure it out after having the car for over a month. They threw a bunch of parts at it. As it sits now it barely stays running and struggles to accelerate and bogs down and stalls. When you unplug the alternator it runs great (until the battery dies). So far I've tested all three wires using a test light and all of the wires/ visible links are good.also checked the fan fuse and its good. Has anyone had this problem/ know someone who has.
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Re: 92 camaro 305 tbi wont run unless alternator unplugged
Unplugging the alternator changes the injector pulse width making the engine run rich.
Besides testing ste electrical charging system/ connection. Ohm the injectors when the engine is warm IIRC 2.0-2.2 ohms, and you can even see the injector spray pattern with a timing light pointed at the injectors.
Besides testing ste electrical charging system/ connection. Ohm the injectors when the engine is warm IIRC 2.0-2.2 ohms, and you can even see the injector spray pattern with a timing light pointed at the injectors.
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Re: 92 camaro 305 tbi wont run unless alternator unplugged
I can do that. But the injectors injector wires and ecm have been replaced.
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Re: 92 camaro 305 tbi wont run unless alternator unplugged
Tried 2 new alternators.
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Re: 92 camaro 305 tbi wont run unless alternator unplugged
Bad or missing block ground?
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Re: 92 camaro 305 tbi wont run unless alternator unplugged
Still no luck I rewired the alternator and timed the motor. Now it runs but with a surging idle andwhen it's cold it bogs down if you give it more than a quarter throttle. Runs much better when the motor is warmed up but still hesitates. Still runs good with the alternator unplugged
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Re: 92 camaro 305 tbi wont run unless alternator unplugged
Put a new block ground on it
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Re: 92 camaro 305 tbi wont run unless alternator unplugged
I ohmed the injectors they measured 1.3 ohms. And key on engine off they measured 12.29V battery voltage 12.45V.
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Re: 92 camaro 305 tbi wont run unless alternator unplugged
The spec from another forum on here said from 1.16 to 1.36 ohms
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