Quote:
Originally Posted by TomUK
Citroen Saxo Desire, 1.1L. Engine began to run rough. Engine management light came on. Went for easiest option and checked spark plugs. One had failed (oiled up). Stuck a replacement plug in - problem solved, running well again.
Warning light remains on though. I know it has to be re-set using a diagnostic unit, but I keep reading that disconnecting the battery for an hour or so and then re-connecting it will re-set the light.
Anybody tried this - did it work?
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That's not how the EML works
The light will only stay on if a problem persists, when the problem goes away the light goes out but the code stays stored.
You need to know what the code is to have any idea of where to look, in order to start fixing it.
an oiled up plug would point to a mechanical issue, stem seals/rings etc.
It wasn't just wet and sooty from a misfire? definitely oil?