Check engine light
06-26-2019, 01:30 AM
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W203 (2007), W120 (1962)
Check engine light
I have changed the coils, the plugs and the $12 hoses along with the valve.
The dreaded CEL keeps coming on but now only when I am caught in stop/go traffic jam.
When I erased the code P0171 using OBD scanner, the light goes off and remains off until
I am caught in a jam again. Within minutes, the CEL lights up in orange. I have no problems starting the car in the morning or when the engine is warm/hot. Acceleration is good as usual and I don't see any increase in fuel consumption.
The dreaded CEL keeps coming on but now only when I am caught in stop/go traffic jam.
When I erased the code P0171 using OBD scanner, the light goes off and remains off until
I am caught in a jam again. Within minutes, the CEL lights up in orange. I have no problems starting the car in the morning or when the engine is warm/hot. Acceleration is good as usual and I don't see any increase in fuel consumption.
