Thread: 300Tdi fuel solenoid power issues

I was prepping the 110 for a trip and replaced the slightly leaking vacuum pump, but in the process damaged the white wire (fuel solenoid cut off) and the brown (alt - tacho) and green (temp) wires. - Oops.

This blew a 60amp fuse in the engine bay.

I replaced the fuse, cut & rejoined the wires, but I get no power on the white wire.

I can't find a 300Tdi wiring diagram that's clear.

On the 200Tdi the power comes straight from the ign switch - is it the same on the 300Tdi, or does it go via a relay?

Power at the back of the ign switch is normal (acc and ign).

To complicate matters the ARB Turbo Timer will not hold IGN, but switches off when I turn the key off. This started at the same time, which leads me to suspect a relay.

The under dash fuses are ok as are the under bonnet ones.

I can't unplug the engine loom as it's wedged under an AC pipe.

The turbo timer has IGN and ACC power and good earth, and all the lights work. I've pulled it apart and there's nothing burnt or broken and there's power to the circuit board.

Any ideas - PLEASE.


Thanks in advance, Michael

Done - the car starts, but the Turbo Timer still doesn't work.