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Fuel pressure stall while driving

  • Megastang93
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03 Oct 2019 08:28 #33987 by Megastang93
Fuel pressure stall while driving was created by Megastang93
93 Mustang 331 w/ A1000 fuel sys, aeromotive fuel regulater, 60lb inj, megasquirt ecu.

Mustang fuel pressure shuts off and lights stay on forcing me to pull over and will startup with no issues. Happens within a mile.

Checked main grounds and cleaned connections.

Have a feeling it's fuel pump, but how can I be sure it's not wiring, pre/post filter, fpr, fuel pump relay and wiring. Has stalled in the driveway from idling but not common. I've been educating myself about current recently. I'm going to troubleshoot possible current /wiring issue to pump.

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03 Oct 2019 09:53 #33989 by Andy.MacFadyen
Replied by Andy.MacFadyen on topic Fuel pressure stall while driving
You really need to ask this question in a Megasquirt forum, but you before going there need to check you are losing 12v power (and also ground) even a basic tungsten bulb test light should be suitable, ISTR the main relay and fuel fump relay You also need to check if you are losing the ignition and injector power at the same time.


Megasquirt Wiring Schematic Megasquirt Wiring Schematic [/url]

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