What would I change in the fuel pump tab to get the pump to constantly run to drain the tank? Running stock PWM pumps.
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What would I change in the fuel pump tab to get the pump to constantly run to drain the tank? Running stock PWM pumps.
Nothing as fuel pump in 2gen is BCM driven. Short 2 pins under the seat or wire a switch.
I changed fuel pump>pump command signal>off duty cycle to 49% and the pump runs constantly. tank is drained
Must be a one off case as this never worked for me in any mustang no matter what is set there.Quote:
Originally Posted by Davem3261
Lund gave me a tank drain tune. His works, logged it and the pump ran constantly at 49%. I was curious how it worked. I put the mustang at 49% drained that. Did the same with my F150 to go back to pump gas.
Might be this works in the lund's OS - who knows ;) It never did for me.
Anyways this got me curious, might try again and hook up an oscilloscope.
I modified my stock file so it was using the stock OS