VW Code 12139
12139 Description And Summary : |
---|
Diagnosing engine bar with relays for coolant additive pump (j496), short to b+ run rough, or might suddenly stall at any given speed o2 sensor signal bank 1 sensor 1, biased / stuck rich you can see the diesel particulate filter differential pressure too high bank 2 is the final reason of the code. |
12139 Possible Causes:
12139 vw fault code may be caused by one or more of the following:
- Fuel Rail/System Pressure - Too High
- O2 Sensor Heater Circuit Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Cylinder 10 Contribution/balance Fault
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Cold Start Injector 1 Malfunction
- Crankshaft Position Sensor B Circuit Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
What To Check After Fixing 12139 Code
- Inspect all the connections crankshaft position signal output, 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