Fuel pump/ immobiliser/earths or other?

[retroptvr]

The initial message was deleted from this topic on 04 August 2014 at 03:06

[RedCabbage]

Check for a live feed at the coil with the ign on. Most immobilisers cut this feed.

Your original fuel pump live feed could run in parallel with the coil as they could share fuses and relays.

I'm sure someone with the Chim bible will confirm this in a minute...

[pupp]

Three cuts on the immobiliser... starter, fuel pump and ign

[spend]

Dont know what year his car is, or if its had an aftermarket kit. Pissing in the wind - good start to year :-)

[GreenV8S]

You need to work through it methodically seeing where you have power and where it's missing. Hotwiring the pump eliminates a whole lot of potential faults and is a good first step. If the pump runs you then have a chance to track down any other faults. Without the pump it's obviously a waste of time. If the pump won't run even with the hotwire then check the pump earth, if you definitely have 12v across the pump and it isn't running then the pump is duff. Also check that you have switched ignition voltage at the coil, and power to the ECU.

[RedCabbage]

I was originally going to say "GreenV8S will be here in a minute" but I thought that might make him hide just to prove me wrong!