25-11-2012, 07:58 PM
(25-11-2012, 06:58 PM)cully Wrote: is it a one plug ecu or three plug?
i dont think the Immo disables the low pressure pump
think it only disables the power to the injectors
This, lift pump should run regardless.
You would still hear the lift pump prime if it was a FPR problem, yes. You can rule out the fpr by clamping the return line from the pump, soon build pressure like that. Also, you can test the voltage being given by the FRPS. Check out my thread on the issue, should find most of your answers there.