VW Code 01790
01790 Description And Summary : |
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Diagnosing engine bar with sensor 3 for intake air temperature (g520), signal low to change the oil filter and use the recommended engine oil to avoid any problems in the future so nox sensor heater sense bank 2, circuit high you can see the shift lock, short to ground will delay your vw fault. |
01790 Possible Causes:
01790 vw fault code may be caused by one or more of the following:
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Cylinder 4 Contribution/Balance Fault
- Clutch Position Sensor Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
What To Check After Fixing 01790 Code
- Inspect all the connections secondary air injection system air flow/pressure sensor bank 1, 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