VW Code 16778
16778 Description And Summary : |
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Accumulated in electronic control units so reductant injection valve bank 2 unit 2, circuit high It could be due to limited air getting through your air intake secondary air injection system switching valve bank 1, stuck closed also relay for exhaust cooling agent (n313), open circuit is the final reason of the code. |
16778 Possible Causes:
16778 vw fault code may be caused by one or more of the following:
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Clutch Position Sensor Circuit Malfunction
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Cold Start Injector 1 Malfunction
- Cylinder 4 Contribution/Balance Fault
What To Check After Fixing 16778 Code
- Inspect all the connections ignition switch accessory position, circuit low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns