Thread: $$$what A Price!!!!!!!!

heres a thought. If the ECU is moved so that the plugs are facing down vertically will this help. surely oil cant flow up hill, even with the capiliary action. mounted flat as it is in my fender and being lower than the engine means oil just flows straight to it.

Drut, I hate to tell you this but is unneccessary to replace the whole harness. Generally to do it quick replace the injector harness ($130 from Karcraft) and flood the main harnes with brake cleaner or similar over a period of about 5-8hrs and all will be good. Can be done without even removing the whole engine harness.

so is the injetor harness a seperate item to the one I have.??? the one I have looks like it is the whole deal, a big pile of spagetti. I though things were a bit off as I had spoken to MR autos at Redcliffe and they told me oil in the harness could be fixed witha new harness for $280 fitted. whats the go??

The angle of the ECU won't affect anything at all. It's completely sealed at the plug & oil cannot enter it via the harness.

AFAIK, the culprit is the injector harness which sits under the rocker cover. The oil works it's way along that harness to the engine harness eventually all the way to the ECU.

Drut as said, the injector harness is mainly under the rocker cover and comes out through a hole at the front of the head where it connects via a cup/barrel connector to the main engine harnes. The reason oil gets in is the o rings in the head wear and capillary action feeds oil along the wires into the cup and as the bottom half of the cup is the female plug, oil easily flows along the outside and inside of the wiring to the ecu. Unplug the ecu under your seat and put the end in a plasti bag or something to catch residue. Unplug the harness at the barrel connector and prop in position. Use brake cleaner, metho or a non plastic damaging contact cleaner (some contact cleaners will melt plastic, I know as have done it). Over a period of about 8 hrs or so keep adding more. Give it a bit to clear right out remove the bag and residue. Clean up residue with a cloth and cotton buds. Replace injector harness while all this is going on, clean up spare and get new o rings and keep as a backup. Over the next couple of days check the ecu connector at the ecu and clean up any residual mess that may occur. Should be it.
Replacing the whole engine harness is a fairly big task and should only be a last reort. Sounds like the mechanic who advised you has not a clue or wants some extra work.
Also make sure if you have a 99-2002 model you check the oil pump bolt as well as this can cost an engine. Just do a search on this site, there is plenty of info on it.

What brand solvent do you sujest? Will metho do?

Metho did mine OK.
Turps is no good as it leaves an oily residue.
Andrew

Originally Posted by CraigE

Drut as said, the injector harness is mainly under the rocker cover and comes out through a hole at the front of the head where it connects via a cup/barrel connector to the main engine harnes. The reason oil gets in is the o rings in the head wear and capillary action feeds oil along the wires into the cup and as the bottom half of the cup is the female plug, oil easily flows along the outside and inside of the wiring to the ecu. Unplug the ecu under your seat and put the end in a plasti bag or something to catch residue. Unplug the harness at the barrel connector and prop in position. Use brake cleaner, metho or a non plastic damaging contact cleaner (some contact cleaners will melt plastic, I know as have done it). Over a period of about 8 hrs or so keep adding more. Give it a bit to clear right out remove the bag and residue. Clean up residue with a cloth and cotton buds. Replace injector harness while all this is going on, clean up spare and get new o rings and keep as a backup. Over the next couple of days check the ecu connector at the ecu and clean up any residual mess that may occur. Should be it.
Replacing the whole engine harness is a fairly big task and should only be a last reort. Sounds like the mechanic who advised you has not a clue or wants some extra work.
Also make sure if you have a 99-2002 model you check the oil pump bolt as well as this can cost an engine. Just do a search on this site, there is plenty of info on it.

Thnaks for that. The oil pump bolt??? Does it come loose or what?? Is replacing the o rings a big task??