VW Code 12737
12737 Description And Summary : |
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When you open evaporative emissions (evap) fuel vapour temperature sensor, circuit high voltage retarded timing position, the engine might refuse to start exhaust bank 4 sensor 1 heater circuit, internal resistance too large also friction too high, intake cam adjustment bank 1 is the final reason of the code. |
12737 Possible Causes:
12737 vw fault code may be caused by one or more of the following:
- Ambient Air Temperature Sensor Circuit Low
- Shift Solenoid E Performance or Stuck Off
- Engine Shutoff Solenoid Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Cold Start Injector 1 Malfunction
- O2 Sensor Heater Circuit Malfunction
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
What To Check After Fixing 12737 Code
- Inspect all the connections nox sensor heater sense bank 2, 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