Fault code: P 1009

Variable valve timing control circuit-pilot sensor reset error

Meaning: Variable Valve Timing (vvt) Control Circuit-Pilot Sensor Reset Error (Bank 2)

Category: power system

Detailed meaning: The function of camshaft is to control the opening and closing of valve. In the variable valve timing system, the electronic camshaft regulating valve adjusts the angle of the camshaft by changing the oil pressure of the camshaft regulator according to the instruction of the engine control module, so as to ensure that the valve opens and closes at the best time. So as to optimize the efficiency and power of the engine in all speed ranges.

2. Fault codes are applicable to models: Audi and Volkswagen.

Fault code: P 1009

Air Flow Sensor 1/2- Incredible Load Detection Signal

Implicit load detection on mass air flow sensor 1/2-signal

Category: power system

Details: The function of the air flow sensor is to convert the air flow into an electrical signal and send it to the electronic control unit as one of the basic signals to determine the fuel injection quantity.

3. Applicable models of fault codes: Honda and Acura.

Fault code: P 1009

Camshaft Position Sensor-Circuit Fault/Timing Transition/System Performance

Camshaft position (intake/left/front), cylinder bank 1- circuit fault/timing advance/system performance

Category: power system

Detailed meaning: The function of camshaft is to control the opening and closing of valve. The function of the camshaft position sensor is to transmit the camshaft position to the electronic control unit in the form of voltage signal. @20 19