Thread: M & S Lights again

Recent discussions with allfourx4 indicate that CAN faults can be a mis signal at ecu connector, due to oil. 5 min checkto prove it.CAN wires are at bottom of ecu red connector; gravity and movement will put the oil here.

Hi bsperka

Thanks for that. I hadn't thought to check there.

If I do find any oil there though, my mechanic will be doing a warranty job as he replaced the injector loom only 6 months ago

Steve

Originally Posted by Rok_Dr

Hi bsperka

Thanks for that. I hadn't thought to check there.

f I do find any oil there though, my mechanic will be doing a warranty job as he replaced the injector loom only 6 months ago

Steve

Up to you, but unless you replaced all the wiring from ecu to engine, then the oil will come out for a long time. Some people take the harness from engime to ecu off and let it 'drain' for awhile ( eg days) Consider this though. If you have a 2004 model then it's been going in for at least 8 yrs.

If you do find oil in the red conector clean it and remove the orange seal ring for a while to allow the oil to drain more freely from the engine harness.

Have you rerouted the aircon drain hoses?

Thanks all for your replies

I had a closer look last night and underneath looked reasonably OK/clean. No damage to the wiring either where it passed over the back of the transmission, however the heat shielding has some light abrasion so I'll keep a watch on that. Air cond drains haven't been extended Greg, so that will be a job for another day, when I have time to drop the exhaust to get in there.

Checked the BCU as well and YES there was a small amount of oil, so your last post bsperka was correct, as only the engine loom was replaced recently. It therefore appears that there is still some residual oil in the ECU section. Anyway I gave it a good drench with contact cleaner, including removing the rubber seal, let it dry for an hour or so and put it all back together. All OK on the test run this morning.

I'll monitor it and see how it goes, but if there is still oil coming through I'll be having a chat with the mechanic when I get back from down south.

A can of contact cleaner is also being added to the tool box as this is the second time in as many months I have had need of it. Most useful stuff!

Thanks again for your help guys.

Cheers

Steve

Hi Rok_Dr
Did you manage to fix the problem? mine is now doing the same thing but the mechanic is unable to find the problem as we speek
Saxon

Hi Saxon

Touch wood I haven't had a reoccurrence. After cleaning the ecu plug and resetting the error codes I did 1600km in January pulling the van around the south west on some pretty torrid days with no problems.

So in my case it seems that it was a small amount of residual oil at the orange ecu plug that caused the issue. Are you getting the same error codes?

Cheers

Steve