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2001 f4i Fuel pump not priming

Old 07-13-2009, 02:03 PM
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Join Date: Jul 2009
Location: Pittsburgh PA
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Default 2001 f4i Fuel pump not priming

The fuel pump on my 2001 f4i is not getting juice, it is in good condition and works when jumped. The battery is good and is supplying the ECM with power but power is not getting to the fuel pump from the ECM.

I have to wait till Thursday to swap a ECM with a buddy in the mean time does anyone have any idea what will prevent power from the ECM to the fuel pump?
Attached Thumbnails 2001 f4i Fuel pump not priming-img00101-20090515-1816.jpg  

Last edited by AllDayJae; 07-13-2009 at 02:21 PM.
Old 07-13-2009, 03:32 PM
Aken's Avatar
July 2008 ROTM
Join Date: Oct 2007
Location: Milwaukee
Posts: 3,002

Fuse, damaged wiring harness, damaged fuel ignition switch (the nice big red one), bad ECU (unlikely).

If it's the fuse, I shall point and laugh at you briefly, then welcome you to the club of people who forget fuses exist.

Edit: Could also be a bad bank angle sensor, or goofy wiring in between it and the ECU.

Last edited by Aken; 07-13-2009 at 07:04 PM.
Old 07-13-2009, 04:37 PM
bigtim4's Avatar
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Join Date: May 2009
Location: Lawrence, KS
Posts: 21

Also may be the engine cut relay on the back right portion of the tail. If the relay is bad the symptoms would be pretty much as you describe.
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