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Old 02-22-2018, 06:57 PM   #6
GM man
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Join Date: Aug 2011
Location: Gainesville, Texas
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Re: No voltage from PCM fuel relay trigger

Quote:
Originally Posted by Wrenchbender Ret View Post
If there is a problem with the ignition the ECM won't kick in the fuel pump.
Yeah, I read somewhere that if the crank sensor goes bad that the PCM won't kick the fuel pump on. I replaced it and nothing changed. I could hear the throttle body do it's deal when the key was on, so I'm assuming my PCM was still getting power.
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1972 GMC Jimmy 6.0/4L65
1972 Chevrolet long bed 1/2 ton
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