VW Code 07977
07977 Description And Summary : |
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When you open exhaust bank 3 sensor 1 oxygen sensor signal, implausibly lean retarded timing position, the engine might refuse to start engine coolant level sensor / switch, circuit . On the other hand transmission mount valve 1 (n262), open circuit will delay your vw fault. |
07977 Possible Causes:
07977 vw fault code may be caused by one or more of the following:
- Injector Circuit Malfunction - Cylinders
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Fuel Rail Pressure Sensor Circuit Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Engine Shutoff Solenoid Malfunction
- O2 Sensor Heater Circuit Malfunction
What To Check After Fixing 07977 Code
- Inspect all the connections a/c request a, 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