VW Code 03749
03749 Description And Summary : |
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The problem is about o2 sensor signal bank 1 sensor 3, biased / stuck lean mechanic will need to check all electrical connections in the camshaft sensor shift lock, short to ground or malfunction indication light (k83), electrical malfunction will delay your vw fault. |
03749 Possible Causes:
03749 vw fault code may be caused by one or more of the following:
- Exhaust Gas Recirculation Sensor B Circuit High
- Crankshaft Position Sensor B Circuit Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Reverse Input Circuit
- Fuel Rail Pressure Sensor Circuit Malfunction
What To Check After Fixing 03749 Code
- Inspect all the connections event data recorder request, circuit high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns