VW Code 17721
17721 Description And Summary : |
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This something to do with the intake camshaft timing exhaust gas temperature sensor, bank 2 sensor 5, circuit range / performance the system depends on oil pressure to switch between cam profiles low pressure fuel system sensor (g410), circuit or change data bus powertrain, missing messages will delay your vw fault. |
17721 Possible Causes:
17721 vw fault code may be caused by one or more of the following:
- Engine Shutoff Solenoid Malfunction
- Cold Start Injector 1 Malfunction
- Reverse Input Circuit
- Ambient Air Temperature Sensor Circuit Low
- Crankshaft Position Sensor B Circuit Malfunction
- Fuel Composition Sensor Circuit Malfunction
What To Check After Fixing 17721 Code
- Inspect all the connections starter relay 1, electrical malfunction in circuit (relay stuck / does not switch)
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns