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post #1 of (permalink) Old 14th March 2006 Thread Starter
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Megane oil pressure light?

The observant among you may recall my earlier postings on this problem, which is proving a real s** to pin down.

It's a 2000/W 1.6 Sport Alize. When accelerating from rest my oil pressure and stop lights flicker a few times then go out again. Eeek!

Having checked the pressure, given it a new pressure switch and then given the sump a clean and new oil and filter, someone gave me the blindingly obvious idea of pulling the wire off the pressure switch then driving it, to see what happened. And lo and behold the light STILL flickers, i.e. it's got nothing to do with the oil pressure at all! It MUST be something shorting in the wiring harness or similar.

Which is nice to know, but doesn't solve the problem. I've tried pushing and pulling at the harness to see if I can make the light flicker but no dice. The only feeble extra clue is that it flickers more easily when turning right than left, so it happens when accelerating forwards and/or to the right. Oh yes, and I guess the fact that it flickers rather than coming on steadily may mean it's close to the engine and responding to the vibrations therein.

Does anyone have any bright ideas for how to locate the problem? Or might a pragmatic approach be better, i.e. disconnect the stock wiring and adding my own bypass wiring for example? Thoughts please!
Currently in Greenmanalishi's garage:
2000 Megane Sport Alize 1600 Auto
Greenmanalishi is offline  
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