ya - my E38 has a persistant CEL that appears to be no more than an EVAP control valve, which doesn't affect the performance or operation of the engine one bit. But now I do need to fix the silly thing because I need to get a smog cert to register the car.

In the 2 years I had the X5 I did not get hardly any CEL's. Seems to be a hit or miss thing.

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2003 4.6is - SOLD
2003 M5 Imola
2008 Mini Cooper S
2011 Mazda CX9