Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: philhoward on 05 July 2008, 14:47:42

Title: Dead Fuel Pump?
Post by: philhoward on 05 July 2008, 14:47:42

Went to jump in the Mig earlier, and for the first time ever it didn't start.  Just had a prod and a poke and looks like the fuel pump has suddenly failed..the lack of pressure in the fuel rail pretty much confirmed that.
Voltage out of the FP relay and through the fuse, for some starnge reason tried a voltage reading at the plug (disconnected from the pump) and only got 5v - plus the EML light going mad. Ys, it was the Fp contacts, not the gauge ones..

Any tips/tricks? - and anyone know where you can get a pump on a Saturday afternoon? Are the internals generic enough to use something else?  Might be able to get hold of a Range Rover internal pump - but thats about it!

Battery now gone flat, so charging up....

Title: Re: Dead Fuel Pump?
Post by: philhoward on 05 July 2008, 15:36:20

Delay my last...looks like its an immobiliser/alarm fault.  
12V applied directly to the pump and it works!
Any idea where they're hidden??

Title: Re: Dead Fuel Pump?
Post by: outlaw0a37 on 05 July 2008, 21:52:14

check the accident cut of switch this will give the same simption

Title: Re: Dead Fuel Pump?
Post by: MutantCav on 05 July 2008, 22:21:24

Immobiliser on early Omegas is behind the main glove box...

Title: Re: Dead Fuel Pump?
Post by: philhoward on 06 July 2008, 12:07:02

Quote

check the accident cut of switch this will give the same simption

Whereabouts does it hide?  Can't see it on the wiring diagram - or is just a signal from the Airbag ECU instead?

Title: Re: Dead Fuel Pump?
Post by: philhoward on 06 July 2008, 14:58:45

Well, its working again!  In finding the original immobiliser (Cheers, Chris), I also found the alarm wiring spliced into the Omega loom - and lo behold - 2 of its wires interrupt the fuel pump wire.  Bridged it out and all is well.

Now to try and make some more headway on the LPG inbetween the showers...