diesl intermittent cutting out

tonytolle · 10th July 2022, 10:55

Good morning I may have posted this in the wrong forum previously ,however I have a problem with a 2ltr Rover diesel which cuts out intermittently it will restart straight away but may cut out again after a couple of minutes, has anyone any experience of this .Also ,when the sensor in the fuel filter senses low fuel pressure ,does the ECU disconnect the earth from the fuel pump relay ,or put the engine into limp mode ,can the pierburg pressure relief valve fail and cause low fuel pressure at the pump ?

trikey · 11th July 2022, 12:01

Firstly check the plenum fir signs of water, if your ecu has had a bath this can cause your issues.

If all is dry, listen to see of your in tank fuel pump is working,if not you will need over a quarter of a tank of fuel to keep the car running.

Failing the above, do an injector leak back test.

Sent from my SM-G780G using Tapatalk

tonytolle · 13th July 2022, 09:37

Quote:

Originally Posted by trikey

Firstly check the plenum fir signs of water, if your ecu has had a bath this can cause your issues.

If all is dry, listen to see of your in tank fuel pump is working,if not you will need over a quarter of a tank of fuel to keep the car running.

Failing the above, do an injector leak back test.

Sent from my SM-G780G using Tapatalk

Thanks Trikey

10th July 2022, 10:55	#1
tonytolle Regular poster NONE AT THE MOMENT Join Date: Jul 2016 Location: Christchurch Dorset--Murcia Spain Posts: 78 Thanks: 13 Thanked 18 Times in 10 Posts	diesl intermittent cutting out Good morning I may have posted this in the wrong forum previously ,however I have a problem with a 2ltr Rover diesel which cuts out intermittently it will restart straight away but may cut out again after a couple of minutes, has anyone any experience of this .Also ,when the sensor in the fuel filter senses low fuel pressure ,does the ECU disconnect the earth from the fuel pump relay ,or put the engine into limp mode ,can the pierburg pressure relief valve fail and cause low fuel pressure at the pump ?

11th July 2022, 12:01	#2
trikey Premium Trader Rover 75 Join Date: Nov 2010 Location: Devon Posts: 33,764 Thanks: 8,837 Thanked 14,831 Times in 8,030 Posts	Firstly check the plenum fir signs of water, if your ecu has had a bath this can cause your issues. If all is dry, listen to see of your in tank fuel pump is working,if not you will need over a quarter of a tank of fuel to keep the car running. Failing the above, do an injector leak back test. Sent from my SM-G780G using Tapatalk __________________ Lest we forget..