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Old May 12, 2023 | 09:41 PM
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pizzaguy
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Joined: Jun 2009
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From: Fort Worth, Texas
Default Re: Crank but no start

Originally Posted by qldcrossfire
tighed1 is this what you are referring to? That the fuel relay may be staying open and no power to the pcm? Because it does sound like the fuel pump is continually running when I have the key turned and all lights on dash. Not like it's just priming and stops.

The BL/RD wire does not power the ECU (PCM) That wire is pulled to ground by the PCM to pull in the relay in order to send power to the fuel pump.
I still wonder what your fuel pressure really is.
 
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