leeogt4
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I've just bought a fuel rail pressure sensor wiring harness does anyone have a diagram of where the 3 wires go in the ecu?
It's a td4 2004
It's a td4 2004
fuel pressure regulator wiring diagram
- Thread starter leeogt4
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same place as the old wires went.
leeogt4
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Hi thanks for the reply but I have not removed the old ones yet as I don't know which ones to remove i was hoping the new harness would have come with some fitting instructions but didn't
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go by colour codes
leeogt4
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There must be loads of wires going into the ecu some sort of wiring diagram would be much better than just trying to match up colours and the 3 wires on the new harness have 2 colours on each wire
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yes and the three wires you need to swap should have exactly the same colours.
if you havent removed the old harness then trace the wires. if you dont feel confident, take it to an auto electrician.
maybe this will sort it (?) :
https://www.landyzone.co.uk/land-rover/l-r-tech-bulletin-for-ymq503320.173958/#post-1763690
https://www.landyzone.co.uk/land-rover/l-r-tech-bulletin-for-ymq503320.173958/#post-1763690
leeogt4
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Thanks a lot guys that's just the info I was after 
Arctic2
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Hi There was it this one Repair Loom TD4 YMQ503320 and if so did you manage to fit it ok please cheers Arctic2
Hi There was it this one Repair Loom TD4 YMQ503320 and if so did you manage to fit it ok please cheers Arctic2
leeogt4
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Hi not sure about the numbers but it's the fuel rail pressure sensor harness repair loom I haven't fitted it yet hoping to do it some time next week
leeogt4
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Just cheaked and yes that is right part numbers
leeogt4
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Ok i changed the harness yesterday took about half an hour to do and hasn't fixed it still smoking and misfiring so I'm going to replace the inlet manifold seals today as I am now convinced this problem is down to an air leake somewhere.
Arctic2
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do not forget it maybe the EGR not opening properly or even stuck, I always clean the EGR and manifold twice a year, and clean the MAP sensor joined to the manifold which should be removed if cleaning out the manifold.
leeogt4
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The egr has been blanked off and it has a new maf sensor running out if ideas now
