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Guest Message by DevFuse

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'95 legacy fuel pump runs constantly without key in ignition

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3 replies to this topic

#1 LionsMane



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  • Kerrville, TX

Posted 19 October 2017 - 05:43 PM

My neighbor has a '95 legacy wagon, I replaced fuel filter, replaced dead pump, relay checked out, sending unit seemed OK. Now the fuel pump runs constantly without key in ignition, it will run battery down overnight. The car starts and runs.  Manual suggested  MAF, pressure sensor.

Has anyone had a similar issue?

#2 Fairtax4me



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  • Charlottesburg, VA

Posted 19 October 2017 - 06:19 PM

Relay is the only way the pump gets power. Remove the relay and see if it shuts off. If it does either the relay is stuck on or the coil control circuit for the relay is grounded and keeping the relay on.
Edit: read op wrong.

Edited by Fairtax4me, 19 October 2017 - 06:31 PM.

#3 Gloyale


    It's a sickness

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  • Corvallis, OR PNW

Posted 19 October 2017 - 11:09 PM

screwed up relay

#4 Evil02outback


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  • Bremerton

Posted 20 October 2017 - 03:03 AM

I had that problem with mine and it turned out to be a bad ground to the engine but my car wouldn’t start, it would turn over.
But the moment you turned the ignition off the fuel pump came on and a whole bunch of other things

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