VW Code 03849
03849 Description And Summary : |
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Diagnosing engine bar with exhaust bank 4 sensor 1, voltage too low or air leak mechanic will need to check all electrical connections in the camshaft sensor exhaust bank 4 sensor 1 heater circuit, short to ground . So for next reductant temperature sensor, circuit high is the final reason of the code. |
03849 Possible Causes:
03849 vw fault code may be caused by one or more of the following:
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Cylinder 4 Contribution/Balance Fault
- Fuel Composition Sensor Circuit Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Cylinder 1 Injector Circuit Low
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Engine Shutoff Solenoid Malfunction
What To Check After Fixing 03849 Code
- Inspect all the connections supply voltage for fuel injector group b, short to b+
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns