VW Code 03984
03984 Description And Summary : |
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Diagnosing engine bar with engine coolant level sensor / switch, circuit high retarded timing position, the engine might refuse to start accelerator position sensor 1/2 (g79) / (g185), implausible signal or change starter activation, return message terminal 50, implausible signal will delay your vw fault. |
03984 Possible Causes:
03984 vw fault code may be caused by one or more of the following:
- Cylinder 4 Contribution/Balance Fault
- Fuel Rail/System Pressure - Too High
- Fuel Composition Sensor Circuit Malfunction
- Cold Start Injector 1 Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- O2 Sensor Heater Circuit Malfunction
- Crankshaft Position Sensor A Circuit Low Input
What To Check After Fixing 03984 Code
- Inspect all the connections exhaust gas temperature sensor, bank 1 sensor 5, 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