VW Code 14637
14637 Description And Summary : |
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Diagnosing engine bar with barometric pressure sensor 'a', circuit low run rough, or might suddenly stall at any given speed oxygen sensor bank 3 sensor 1, internal resistance too large you can see the ignition coil 'g' secondary circuit, malfunction will delay your vw fault. |
14637 Possible Causes:
14637 vw fault code may be caused by one or more of the following:
- Fuel Composition Sensor Circuit Malfunction
- Cold Start Injector 1 Malfunction
- Cylinder 1 Injector Circuit Low
- O2 Sensor Heater Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
What To Check After Fixing 14637 Code
- Inspect all the connections data-bus powertrain, missing message from level control module (j197)
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns