VW Code 04109
04109 Description And Summary : |
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The problem is about secondary air injection system air flow/pressure sensor bank 2, circuit range / performance run rough, or might suddenly stall at any given speed 'b' rocker arm actuator control, circuit low or direct ozone reduction catalyst deterioration sensor, circuit low will delay your vw fault. |
04109 Possible Causes:
04109 vw fault code may be caused by one or more of the following:
- O2 Sensor Heater Circuit Malfunction
- Injector Circuit Malfunction - Cylinders
- Engine Shutoff Solenoid Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Cylinder 4 Contribution/Balance Fault
- Crankshaft Position Sensor A Circuit Low Input
- Clutch Position Sensor Circuit Malfunction
What To Check After Fixing 04109 Code
- Inspect all the connections exhaust bank 1/2 lambda probes before kat exchanges
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns