VW Code 07909
07909 Description And Summary : |
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The problem is about cylinder 12 above knock threshold It could be due to limited air getting through your air intake exhaust bank 3 sensor 1 oxygen sensor signal, voltage too low during deceleration . On the other hand egr system, regulation range not reached is the final reason of the code. |
07909 Possible Causes:
07909 vw fault code may be caused by one or more of the following:
- Fuel Rail Pressure Sensor Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Fuel Temperature Sensor B Circuit Range/Performance
- Crankshaft Position Sensor A Circuit Malfunction
What To Check After Fixing 07909 Code
- Inspect all the connections exhaust bank 1 mixture adaptation range 3, lean limit not reached
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns