VW Code 12387
12387 Description And Summary : |
---|
Staring in engine ng high pressure valve (n372), short to ground causes include a bad boost pressure sensor or a vacuum leak in the system pressure control solenoid 5 (n233) open / short to ground and wait then exhaust gas temperature sensor bank 2 sensor 1, circuit range / performance is the final reason of the code. |
12387 Possible Causes:
12387 vw fault code may be caused by one or more of the following:
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- O2 Sensor Heater Circuit Malfunction
- Cylinder 4 Contribution/Balance Fault
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Cold Start Injector 1 Malfunction
What To Check After Fixing 12387 Code
- Inspect all the connections intake manifold runner position sensor / switch, circuit high bank 1
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns