Disco as always performed really well in the snow. Issue occurred yesterday evening, when it started to misfire. Had it been a petrol car, I would have said plugs or leads. The misfire is only present up to about 1500 rpm, after which it seems to clear. I am convinced the engine seems louder, but, could be my imagination. Any suggestions? Cheers.
Disco 2 Misfire TD5
- Thread starter Kingly
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neilly
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Have you checked the red plug on the ECU for oil ?
Cheers
Cheers
neilly
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andy85
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You have to remove the ecu to get the plug off to have a proper look.
biketeacherdave
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Just change the injector harness any way oil may not have seeped into the ecu yet but can still be causing your fault if its got into the wiring. Its a simple and cheap thing to eliminate. Has it been change ever in your ownership ?
Just a thought. I am going to look at the plug tomorrow. If there is oil in the plug, I will strip it down as the link above suggested. I don't think however I will open up the ECU at this point. If I clean the plug up and replace, would this suffice as a temporary fix? I can then arrange a new harness for fitting next weekend.
Cheers.
Cheers.
neilly
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Give it a clean and a try , it cannot hurt.
You will have to clean it a few times anyway after changing the loom.
Cheers
Hellastony
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If you change it, make sure you replace it with only genuine Land Rover, NOT an OEM, it must come in a LR packet... Good opportunity to check the injector lash as well...Also write down the injector codes while you have the top off and if you can sometime check with a Nanocom or similar that the correct codes have been entered.
Tony
Balbas
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Not trying to get into an argument, but do you know what 'OEM' means? An awful lot of stuff that comes in a LandRover box is OEM - or do you think that LandRover make every single component themselves?
sierrafery
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see this and better believe it: https://www.landyzone.co.uk/land-rover/d2-td5-cutting-out-when-warm.326582/#post-4193511
Balbas
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No dramas with that at all. But to say 'don't use OEM only use a LR boxed item' is clearly a bit silly, because anything in a LandRover box which wasn't made by LandRover is OEM by definition... I'm just being nit picky really, but it would have been more correct to say 'only buy a LandRover boxed item as other items may be inferior, even if made by the OEM'. As I say though, it's me been nit picky.
FWiW, I needed an injector wiring harness in a hurry and the only one I could get quickly was a Britpart one (IIRC). About 40k later its still going strong, so they're not all bad.
sierrafery
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You won that lottery then.... before i knew those things i revealed about what's "genuine" i fitted a "Genuine OEM"
which leaked in less than 1 year ... as about that OEM-OE-Genuine terms usage: http://www.island-4x4.co.uk/fuel-injector-wiring-loom-harness-leoni-amr6103g-p-1185.html
brian47
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When you do clean up the red plug, which will only ever be a temporary fix, pull out the white insert from the plug and clean inside there too.
I can't guarantee that cleaning on it's own will sort the problem, it's going to require a new injector harness and cleaning the red plug a number times to get all the oil out of it.
This bloke has done a pretty good write-up on the job:-
http://www.discovery2.co.uk/Injector_harness.html
I can't guarantee that cleaning on it's own will sort the problem, it's going to require a new injector harness and cleaning the red plug a number times to get all the oil out of it.
This bloke has done a pretty good write-up on the job:-
http://www.discovery2.co.uk/Injector_harness.html
Cleaned out the red plug - stripped out as much as I could. Turned the ECU upside down on blue tissue - nothing came out. The amount of oil in the plug was very small. Put it all back together and the symptoms persist. Would this still suggest a new harness? I thought it was because the seals failed on the harness, hence replacement. Does the harness break down internally? Further, if the harness was breaking down, I would have thought the misfire would occur throughout the rev range. Feel free to correct me -any advice greatly appreciated.
jamesmartin
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main harness? ive never come across a need to change one even after oil flooded down it
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