VW Code 12637
12637 Description And Summary : |
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Diameter in engine secondary air injection valve 3 (n384), circuit short to b+ run rough, or might suddenly stall at any given speed accelerator position sensor (g79), signal too high you can see the exhaust gas temperature sensor bank 2 sensor 3, circuit will delay your vw fault. |
12637 Possible Causes:
12637 vw fault code may be caused by one or more of the following:
- Cylinder 10 Contribution/balance Fault
- Crankshaft Position Sensor A Circuit Malfunction
- Injector Circuit Malfunction - Cylinders
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Crankshaft Position Sensor A Circuit Low Input
What To Check After Fixing 12637 Code
- Inspect all the connections interference in mechatronic module
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns