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LandymanStefan

Member Since: 30 Aug 2017
Location: Surrey
Posts: 860

Td5 oil in red ecu plug but not at the injector harness end.

So yesterday I parked on a hill and had a very spluttery 2 cylinder or so start so I’ve had a look at the red plug of the ecu. It has oil in. No surprises.

But I unplugged the engine side where it connects to the injector harness and there’s no oil in this plug.

I’ve owned the car 3 years and in its service history it had the injector harness changed a few times by land rover. Is it safe to just clean out the red plug and assume the oil in it is from previous leaks?

Click image to enlarge

19th Jan 2020 1:04pm

dorsetsmith

Member Since: 30 Oct 2011
Location: South West
Posts: 4554

Oil travel down inside cable with copper wire

clean out the red plug and keep an eye on it (brake cleaner) good at cleaning oil out going to be long job

19th Jan 2020 1:23pm

Daisy90

Member Since: 01 Feb 2015
Location: Hampshire
Posts: 843

For a number of reasons I purchased the extendable loom, it now sits above my head in the truck, well away from water and no oil will trav l that far up a loom
Just a thought like,

I did this after it’s first injector loom change

19th Jan 2020 5:54pm

roel

Member Since: 08 Aug 2009
Location: Lelystad
Posts: 2039

I positioned my ECU between the seats against the bulkhead in my 90. The connectors from the ecu are pointing down. I think that helps too. Roel

1984 90 2.5 na Diesel - RR V8 (1994-2001)
1997 Camel Trophy Discovery 300TDI (2001-2009)
2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts.
2003 90 Td5 (2009-now)

19th Jan 2020 8:41pm

LandymanStefan

Member Since: 30 Aug 2017
Location: Surrey
Posts: 860

Interesting, thanks for the replies, i’ll clean it out initially but it is tempting to relocate it with cables facing down.
Where did you bring the loom up through?

19th Jan 2020 9:14pm

roel

Member Since: 08 Aug 2009
Location: Lelystad
Posts: 2039

https://www.google.com/imgres?imgurl=https...amp;uact=8

Test if this works. Not mine but did more or less the same Roel

1984 90 2.5 na Diesel - RR V8 (1994-2001)
1997 Camel Trophy Discovery 300TDI (2001-2009)
2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts.
2003 90 Td5 (2009-now)

20th Jan 2020 5:10pm

roel

Member Since: 08 Aug 2009
Location: Lelystad
Posts: 2039

I only needed to extend one off the Tranfer box sensor cables. Not sure if it was high-low or difflock. Roel

1984 90 2.5 na Diesel - RR V8 (1994-2001)
1997 Camel Trophy Discovery 300TDI (2001-2009)
2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts.
2003 90 Td5 (2009-now)

20th Jan 2020 5:12pm

Daisy90

Member Since: 01 Feb 2015
Location: Hampshire
Posts: 843

LandymanStefan wrote:
Interesting, thanks for the replies, i’ll clean it out initially but it is tempting to relocate it with cables facing down.
Where did you bring the loom up through?

The extender loom is long enough to locate it up on my “dog guard” right up the top by the headlining, was about £200 in its day though, but touch wood never given me any issues since fitting

20th Jan 2020 7:01pm

LandymanStefan

Member Since: 30 Aug 2017
Location: Surrey
Posts: 860

Thanks for the replies. Looks like this could be a job for the future. My slimline subwoofer is currently mounted on the bulkhead but there might be room to squeeze the ecu in there somewhere. Initially i’ll give it a good clean and see how it goes for the time being.

20th Jan 2020 7:53pm

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