Dirty plugs and bad mileage are both symptoms. The plugs do look a bit sooty which means you are getting more fuel in the engine than it needs. Full set of trouble codes is here: http://www.e38.org/e32/bmw%20code%20defaut.pdfOriginally Posted by tim eh?
If you cant read the codes with the stomp test I'd suggest having them read with an interface or similar. The ECU cant 'know' you have changed the plugs or the FPR. So I think that CEL is going to come back again
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