VW Code 02377
02377 Description And Summary : |
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Diagnosing engine bar with exhaust bank 4 sensor 1 oxygen sensor signal, voltage too low during deceleration It could be due to limited air getting through your air intake a/c request a, circuit low . On the other hand power supply (b+) terminal 15, voltage too high will delay your vw fault. |
02377 Possible Causes:
02377 vw fault code may be caused by one or more of the following:
- Cylinder 10 Contribution/balance Fault
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Cylinder 4 Contribution/Balance Fault
- O2 Sensor Heater Circuit Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
- Timing Reference High Resolution Signal A Too Many Pulses
What To Check After Fixing 02377 Code
- Inspect all the connections a/c refrigerant distribution valve control, circuit high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns