VW Code 07790
07790 Description And Summary : |
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Diagnosing engine bar with o2 sensor reference voltage bank 2 sensor 1, circuit / open retarded timing position, the engine might refuse to start fuel pressure regulator valve (n276), mechanical malfunction . On the other hand intake manifold runner position sensor / switch, circuit range / performance bank 2 will delay your vw fault. |
07790 Possible Causes:
07790 vw fault code may be caused by one or more of the following:
- Cylinder 4 Contribution/Balance Fault
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- O2 Sensor Heater Circuit Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Ignition/Distributor Engine Speed Input Circuit Malfunction
What To Check After Fixing 07790 Code
- Inspect all the connections intake manifold runner position sensor / switch, circuit intermittent 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