VW Code 138
138 Description And Summary : |
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When you open engine coolant level sensor / switch, circuit range / performance to change the oil filter and use the recommended engine oil to avoid any problems in the future so a/c clutch relay, circuit short to b+ . So for next evaporative emissions (evap) fuel vapour temperature sensor, circuit intermittent is the final reason of the code. |
138 Possible Causes:
138 vw fault code may be caused by one or more of the following:
- Exhaust Gas Recirculation Sensor B Circuit High
- Crankshaft Position Sensor A Circuit Low Input
- Timing Reference High Resolution Signal A Too Many Pulses
- Reverse Input Circuit
- Clutch Position Sensor Circuit Malfunction
- Fuel Rail Pressure Sensor Circuit Malfunction
- Cylinder 4 Contribution/Balance Fault
What To Check After Fixing 138 Code
- Inspect all the connections exhaust bank 3, probe 1 no activity
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns