Thanks for the info guys. The CEL came on a day after I hosed off the engine because the belly tray under the motor had been off for six months, so it was dusty and dirty. Not sure if the water may have caused a problem.

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John


1998 C230 for the wife
1986 Porsche 944 Turbo for me in the summer
1993 Audi 90 for me in the winter