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[ViaraiX]

Success!!!

Turns out to be a dodgy connection on the plug which connects to the metal plate.

Reconnected all the fuel lines and manually ran 2 wires to a battery booster and spun pump that way, fired up first time

plugged back in, still wouldnt fire

pierced a small hole in top of wire before plug and checked continuity between wire and pump ... nothing

bent pins a bit, jiggled wiring in plug ... got continuity

turned key ... started first time

trouble is not sure if it is the plug itself or the socket, both of which i will presume are awkward to source / replace and theres no easy way to replace with own connectors

[ViaraiX]

Agreed. I don't think it even fires up to prime the system until cranking is detected. If you're seeing power at the pump without cranking the engine (and 10-11v is suspiciously low) I smell a rat.

mis-wording on my part, the power was whilst cranking, not just with ignition on.

think it was 10-11v because the battery has been under some strain the last couple of days constantly cranking with no reward

[Kevin Wood]

Agreed. I don't think it even fires up to prime the system until cranking is detected. If you're seeing power at the pump without cranking the engine (and 10-11v is suspiciously low) I smell a rat.

mis-wording on my part, the power was whilst cranking, not just with ignition on.

think it was 10-11v because the battery has been under some strain the last couple of days constantly cranking with no reward

Ahh, OK. It's quite normal for the voltage to drop a volt or two when cranking.

Glad it's sorted (or at least the fault has been located).

kevin