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Old Dec 30th, 2012, 10:33   #9
Clifford Pope
Not an expert but ...
 

Last Online: Oct 22nd, 2020 08:27
Join Date: Dec 2001
Location: Boncath
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I didn't notice it was an old article, and I had already commented on it


But I would add that the light can be triggered by a momentary fault or a passing glitch. It doesn't necessarily mean there is still a fault to be found.

I once went over a shower of pebbles on a gravel car park. One must have hit the engine block hard enough to trigger the knock sensor. The lambda light came on and the engine felt a bit odd. I guessed what had happened and cancelled the codes, and it was then fine.

In my experience it's always worth noting the codes, then just resetting and seeing what happens, before getting too worried about tracing faults that aren't real.
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