#108156, "fuel pump doesn't cut off after a few seconds????" Mar-20-08 04:23 AM by ecl98pse
what would cause my fuel pump(walbro 255lph) to keep running when the key is in the on position but the car is not running? It used to run for a few seconds then shut off. It started this not long after the SAFC was installed, but i don't see how that has anything to do with it. I checked the relay, no fuel leaks, and put a diff. pump in. Does the fuel pump have a pressure switch or does the ecu cut power to it after a few seconds? anyone have any ideas? thanks
#108157, "RE: fuel pump doesn't cut off after a few seconds????" In response to Reply # 0
The ECU should cut power to it after a short priming pulse.
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'95 Eclipse TurboGS (garage deco) '95 TSi AWD (restoring a survivor) '97 Talon ESi-T (poor impulse control) '99 Eclipse RS-T (daily beater) '13 Evo X (mostly stock) '17 Sienna (Middle Aged Dad Mobile)
#108159, "RE: fuel pump doesn't cut off after a few seconds????" In response to Reply # 2
Could be the relay sticking. next time it keeps running, go whack the relay with a screwdriver and see if it stops.
______________________________ If a sentence found online has 35% misspellings or greater and includes at least two racially charged expletives, chances are it is a YouTube comment.
'95 Eclipse TurboGS (garage deco) '95 TSi AWD (restoring a survivor) '97 Talon ESi-T (poor impulse control) '99 Eclipse RS-T (daily beater) '13 Evo X (mostly stock) '17 Sienna (Middle Aged Dad Mobile)
#108163, "RE: fuel pump doesn't cut off after a few seconds????" In response to Reply # 3
Replaced the relay and checked the 12v that feeds the coil in the relay and it stays on... So it looks like the ecu is not disconnecting power for some odd reason.
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