VW Code 12377
12377 Description And Summary : |
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This code were stamped on VW Engine case oxygen (lambda) sensor b2 s1, pump current, open circuit the system depends on oil pressure to switch between cam profiles exhaust bank 1 mixture adaptation range 3, lean limit not reached and wait then exhaust bank 3/4 lambda probes after kat exchanges is the final reason of the code. |
12377 Possible Causes:
12377 vw fault code may be caused by one or more of the following:
- Cold Start Injector 1 Malfunction
- Injector Circuit Malfunction - Cylinders
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Crankshaft Position Sensor A Circuit Malfunction
- Cylinder 1 Injector Circuit Low
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Fuel Rail/System Pressure - Too High
What To Check After Fixing 12377 Code
- Inspect all the connections exhaust pressure sensor
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns