Quote:
Originally Posted by mbdoc
If there isn't any LED & pushbutton on that diagnostic connector?
then the ONLY way to diagnose a problem is by watching the duty cycle.
Check engine light on a non-California car is for lack of O2 sensor activity.
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What is meant by "watching the duty cycle?"
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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 157k miles
06 E320 CDI "Rutherford", Black on Tan, 175k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver on Tan, 144k mi, wastegate conversion, ALDA delete
19 Honda CR-V EX 70k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife
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