Reply With QuoteMy exact symtoms over the weekend. All fixed today new loom!
OldBushie
Hi all,
Driving home this arvo and all of a sudden, whilst stopped at lights, td5 disco starts running rough, almost like a miss.
I immmediately thought head gasket as I had a D1 6 months ago that sounded similar when the gasket blew.
Anyway, a quick trawl of the forums alerted me to the old oil in the injector harness trick!I removed the red ECU plug and there was enough oil to do a complete oil change I swear! Anyway, disconnected the head end as well and half a tin of RP7 later (not ideal, but it's all I had) hoped for the best
.
Let it dry/drain and air for 20 min and wha-la NO BETTER.
So learned colleagues, any suggestions before I tow it to MR autos and dump it there till they can have a look?
Now, to reiterate, coz it may help, happened suddenly, not gradually, and strangely, seems to run normally for 2-3 seconds on start up.
I have poked around the engine and can't see or hear any obvious exhaust manifold symptoms.
Help!
Ralph
Fossicker
My exact symtoms over the weekend. All fixed today new loom!
Master
From what I've read (check out these links from 'The Good Oil' to be sure); you might be more successful getting some metho and draining that through the loom overnight to flush the oil out. I think the injector harness would also need to be replaced with the later type.
I'm not sure that 20mins would have been enough time to clean out much of the loom at all - think of how long the oil took to get there!
Geoff
TopicToaster
It is almost bound to be the oil in the loom issue.
Did you remove the white face plate out of the red ecu plug?
Rgds
Pete
Master
Could also be fuel pump, not giving enough fuel (ie Dying) (I had the same symptoms) and I also had a bad fuel relay doing the same thing as well.
Good luck took me ages to track all my issues down
ForumSage
A new ECU loom isn't extremely expensive - may be a simpler option.
OldBushie
Could be fuel, but gunna change the injector loom anyway. I removed the connectors and it was just full of oil! I haven't been able to isolate a pattern that suggests fuel, eg, not just under load or up hill etc, so I'll work on the loom first .Originally Posted by Cameron_Def
Could also be fuel pump, not giving enough fuel (ie Dying) (I had the same symptoms) and I also had a bad fuel relay doing the same thing as well.
Good luck took me ages to track all my issues down
Cheers
OldBushie
Yes,
Heaps of oil to start with, flushed it well. Didn't seem to make a difference which worries me, but then there is still oil in the wires.
Ralph
OldBushie
Ok,
Just an update on the symptoms for the benefit of others. Thought I would try to nail the symptoms whilst waiting for a new harness.
I have no warning lights or dash lamps illuminate.
Problem, as if running on only 4 cyl, is constant at all revs and loads, although is less noticeable at speed.
Simple rudimentary cleaning of the ECU plug only 'returned things to normal' for a few km.
I feel that the hotter the motor gets, the worse the problem becomes although I only have a 7 Km trip home.
I am hoping a harness flush will fix after I change the inj harness.
I have not ruled out TPS or fuel or injector troubles, but will look further if problem persists.
I'll keep you posted.
Ralph
TopicToaster
It is 99% oil in the harness then. You need to swap the injector loom and clean the main harness as best you can. Until you swap the injector loom it will keep pushing the oil along and out into the ecu plugs.
Your injectors are 99% likely to be fine
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