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Old 11-01-2016, 04:28 AM   #31
GM_For_Life
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Join Date: Sep 2013
Location: Spokane, WA
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Re: Throttle body issues

Quote:
Originally Posted by D13 View Post
SO, if you prime it and it fires than the spark is there which says the distributor is close and the module is at least functional. So no fuel is either pump failure, relay failure, ECM failure, or wiring. Assuming it ran before, most likely is disconnected wiring harness, check at fuel pump relay first. When you turn the key on without cranking the ECM commands the fuel pump to run for a couple seconds. If it does that then there should be pressure at the fuel rail tap. But my bet is a disconnect between distributor, ECM, fuel pump relay, or injector harness.
You did make sure the ground wires at the back of the engine are hooked up, right? Grounds are critical on injected motors.
Had an 88 v10 that did something very similar to OP's problem, replaced the ECM after much heartache and it fired right up. Above are the usual suspects
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