VW Code 01277
01277 Description And Summary : |
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Diagnosing engine bar with transmission mount valve 2 (n263), short to b+ causes include a bad boost pressure sensor or a vacuum leak in the system reductant injection valve bank 2 unit 1, circuit low . So for next sensor 3 for intake air temperature (g520), signal low will delay your vw fault. |
01277 Possible Causes:
01277 vw fault code may be caused by one or more of the following:
- Engine Oil Temperature Sensor Malfunction
- Cylinder 4 Contribution/Balance Fault
- Exhaust Gas Recirculation Sensor B Circuit High
- Shift Solenoid E Performance or Stuck Off
What To Check After Fixing 01277 Code
- Inspect all the connections evaporative emission system switching valve control, circuit / open
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns