VW Code 12978
12978 Description And Summary : |
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When you open throttle control: airflow at idle too low it can suddenly lead to a significantly more injector cylinder 16 (n393), circuit low also data bus powertrain, missing message from control module electric parking brake is the final reason of the code. |
12978 Possible Causes:
12978 vw fault code may be caused by one or more of the following:
- Cold Start Injector 1 Malfunction
- Fuel Rail/System Pressure - Too High
- Cylinder 10 Contribution/balance Fault
- Engine Shutoff Solenoid Malfunction
- Crankshaft Position Sensor B Circuit Malfunction
What To Check After Fixing 12978 Code
- Inspect all the connections fuel cap sensor / switch, circuit range / performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns