EPC light and 1200 idle
#11
I stand corrected; the code was engine speed sensor G28, which I called the crankshaft position sensor. Anyway, I replaced that with a new Bosch part, but did not correct the fault. It was only after checking and tweeking the relay arm which was marginal, that the problem went away. My guess is that the ECU is always watching the G28 signal, counting ring gear teeth, and if anything interrupts that count, the ECU responds by logging a code and changing how the car runs. I think that the relay bounce due to the road shock caused the ECU to "think" that the G28 malfunctioned.
#12
AudiWorld Super User
On my car with the automatic 01V, that G28 sensor is attached to the bell housing above/in front of the driver's side CV flange. Held on by just one cap screw (5mm hex I think), easiest access for me was to remove the driver side wheel, and reach in through the wheel well where the drive shaft passes through.
#13
On my car with the automatic 01V, that G28 sensor is attached to the bell housing above/in front of the driver's side CV flange. Held on by just one cap screw (5mm hex I think), easiest access for me was to remove the driver side wheel, and reach in through the wheel well where the drive shaft passes through.
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