Thread: Urgent road side advice needed, TD5 running rough.

No oil in ECU cable at either the ECU or the motor end.

Looks like fuel pressure.

I've taken the return line off the fuel cooler and it just trickles out. There's no way there's 68 psi and 180lpm flow there.

Maybe worth pulling the pump and making sure the gauze isn't blocked up
Although a blocked gauze would result in the pump screaming
Swap one of the other yellow relays to the fuel pump circuit and see if it helps
How many Ks on the pump?

Vehicle has 187000km. And no pump at least after 168000 when I bought it.

I can still hear it buzzing away

Is it possible for high pressure pump to go but the low pressure to be ok?

Don't know Joel maybe someone more knowledgable than I can answer that

And pump or fuel restriction. The pump still buzzes. The battery voltage goes under 12v for a few seconds then the tone of the pump changes like a step not gradually and the voltage rises above 12v again.

I know this has always been the same as I have my madman gauge set to alarm under 12v so it beeps every time I start the vehicle.