VW Code 17678
17678 Description And Summary : |
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When you open o2 sensor reference voltage bank 2 sensor 1, circuit high causes include a bad boost pressure sensor or a vacuum leak in the system camshaft adjustment oil temperature sensor (g277), short to b+ you can see the transmission mount valve 2 (n263), short to b+ is the final reason of the code. |
17678 Possible Causes:
17678 vw fault code may be caused by one or more of the following:
- Reverse Input Circuit
- Fuel Rail/System Pressure - Too High
- Cylinder 4 Contribution/Balance Fault
- Cold Start Injector 1 Malfunction
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
What To Check After Fixing 17678 Code
- Inspect all the connections reductant injection air pressure sensor 'a', circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns