Home > Technical (L322) > TD6 no start fuel pressure issue |
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Nick Evans Member Since: 10 Dec 2013 Location: Dorset Posts: 10 |
You should have 3.5 - 4 bar on the low pressure side with just the ignition on, low pressure could be down to a failing low pressure pump/blocked filter or leaking injector. |
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30th Apr 2018 8:00pm |
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Motobox Member Since: 30 Apr 2018 Location: Northampton Posts: 6 |
Service history suggests the filter was last changed about 20k ago. I'll put a new one on and see if there's a difference. |
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30th Apr 2018 8:13pm |
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bembo449 Member Since: 26 Jul 2017 Location: lincolnshire Posts: 803 |
right , I happened to be at my mates garage y.day where they had a non stating 04 FF on the ramp , after checking the fuel pressure at the rail ( 1 bar) they renewed the leccy pump under the rear pass door , no change , then checked the in tank pump pressure and found it was ok , somewhere near the leccy pump there is a T piece which they think has some type of valve in it ? took that out of the set up and it fired straight up , not saying this is your fault but I thought I would suggest it if you find the pumps are all doing what they should pal |
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1st May 2018 8:47pm |
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Motobox Member Since: 30 Apr 2018 Location: Northampton Posts: 6 |
Thanks for the tip. It's the quirky things like that spin your head. I ordered a new inline,as it's easier than faffing around with flow rates. The diesel pump guy said 3.5 bar up is where I need to be. |
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1st May 2018 9:32pm |
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wayneg Member Since: 05 Jun 2013 Location: South Fremantle, Australia ( ex London ) Posts: 791 |
I have just had problems with the fuel supply, turned out to be the low-pressure pump even though I was getting 4bar pressure from the sensor ontop the fuel filter. This video might be of interest, the guy is using BMW IPNA diagnostics at 1st.
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1st May 2018 11:41pm |
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