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Bruce S

Member Since: 20 Jun 2009
Location: Stoke on Trent
Posts: 17

Oil Seepage into ECU via injector Loom Query

I have a 1999 Defender 90 Td5, which upon purchasing it was suffering from the recognised problem of engine oil tracking to the ECU from the injector loom.

I have subsequently purchased and fitted a new injector loom from the local main agents, and as a result of changing the dash to the later model, I have also replaced the bulkhead loom with an XS loom from a later vehicle.

Surprise surprise, oil is still making its way to the ECU via the loom connection and the car has the associated mis fire when the revs are increased (Given that the car is garaged currently undergoing a few tweeks).

Can anyone comment on their experience of this problem and how it was finally solved.

Cheers for looking!

21st Jun 2009 2:11pm

mse

Member Since: 06 Apr 2008
Location: UK
Posts: 5117

2016 Defender 110 Puma 2.2 XS CSW Scotia Grey

Someone correct me if im wrong - ive not met anyone after the loom change that actually as suffered this again.

Did you clean it all out before fitting the new one. Mike

21st Jun 2009 3:07pm

Landy nut

Member Since: 22 Dec 2007
Location: In hiding
Posts: 154

Did you replace the seals and in particular, the main one which gives the trouble at the front of the block??

21st Jun 2009 3:45pm

Bruce S

Member Since: 20 Jun 2009
Location: Stoke on Trent
Posts: 17

The injector loom was sold as one piece.

Landy nut - What are the seals that you are referring to, have I missed the obvious?

21st Jun 2009 4:21pm

jst

Member Since: 14 Jan 2008
Location: Taunton
Posts: 8488

2011 Defender 110 Puma 2.4 USW Stornoway Grey

theres a seal in the block that the wire passes through - some people leave it out on refitting the new loom. Cheers

James
110 2010 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop

22nd Jun 2009 4:37pm

SteveNorman

Member Since: 16 Sep 2008
Location: Somerset
Posts: 18

The loom (AMR6103) comes with the two seals on it.
I expect the problem you have is residual oil in the loom causing poor connection at the ecu end.
Take off the red ecu connector & reclean out, I use an aerosol cleaner & then electrical contact cleaner.
It may take a few attempts as the residual oil in the loom keeps making it's way to the ecu.
I have had to change a few complete engine looms on discovery 2 for the same problem, (although very rare they need it).

HTh
Regards
Steve

22nd Jun 2009 7:42pm

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