VW Code 09720
09720 Description And Summary : |
|---|
Staring in engine fuel mixture control adjustment range 2, higher limit not reached causes include a bad boost pressure sensor or a vacuum leak in the system linear oxygen sensor exhaust bank 4 / reference voltage, open circuit . So for next secondary air injection system control 'a', circuit high will delay your vw fault. |
09720 Possible Causes:
09720 vw fault code may be caused by one or more of the following:
- Exhaust Gas Recirculation Sensor B Circuit High
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Fuel Rail Pressure Sensor Circuit Malfunction
- Clutch Position Sensor Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
What To Check After Fixing 09720 Code
- Inspect all the connections fuel injection valve 2 (n367), short to ground
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns