What does Audi a4l fault code 00 1009 mean?

The camshaft position sensor is faulty. According to the pre-test plan, check the sensor reference voltage and circuit for virtual connection and open circuit, which indicates that the sensor camshaft position sensor G40 needs to be replaced.

When the car is hot, it is difficult to refuel. Either listen directly or stop the fire directly. There will be fuel consumption, the car is weak, and the acceleration can't add up. Even when driving, the car will keep shaking and so on.

Main advantages:

Camshaft position sensor, whose function is to collect the movement angle signal of the camshaft and input it into the electronic control unit (ECU) to determine the ignition time and fuel injection time. Camshaft position sensor, in order to distinguish it from crankshaft position sensor (CPS), camshaft position sensor is generally represented by CIS.