Ask for and share advice on using the PicoScope kit to fix vehicles here.
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Hi guys I have a vw passat 2.0tdi cr engine in the workshop which cuts out due to rail pressure dropping too low when coming to a junction or when depressing the clutch and allowing the engine to return to idle. The priming pressure is good (5bar with zero cavitation ) when fault occurs. I am suspecting a inlet fuel metering valve. I have grounded control wire of the pressure regulation valve and monitored the voltage on the Pico and it does not drop indicating no leakage from this. My question is how can I check to see if my problem is the inlet fuel metering valve sticking closed maybe? Thanks in advance guys all inputs appreciated cheers Luke
By watching the PCM's control of it when operating normally & at fault ............My question is how can I check to see if my problem is the inlet fuel metering valve sticking closed maybe?