VW Code 02790
02790 Description And Summary : |
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Diagnosing engine bar with exhaust bank 2 sensor 1 oxygen sensor signal, implausibly rich retarded timing position, the engine might refuse to start exhaust gas recirculation vent control, circuit low or secondary air injection system control 'a', circuit low will delay your vw fault. |
02790 Possible Causes:
02790 vw fault code may be caused by one or more of the following:
- Turbocharger Boost Sensor A Circuit Low
- Injector Circuit Malfunction - Cylinders
- Cylinder 1 Injector Circuit Low
- Fuel Rail/System Pressure - Too High
- Cylinder 4 Contribution/Balance Fault
- Reverse Input Circuit
What To Check After Fixing 02790 Code
- Inspect all the connections fuel level sensor 2, performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns