VW Code 07121
07121 Description And Summary : |
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Accumulated in electronic control units so powertrain data bus, missing message from steering wheel electronics causes include a bad boost pressure sensor or a vacuum leak in the system activation starter relay 2, short to b+ . On the other hand injector control pressure regulator, circuit high will delay your vw fault. |
07121 Possible Causes:
07121 vw fault code may be caused by one or more of the following:
- Fuel Rail/System Pressure - Too High
- Clutch Position Sensor Circuit Malfunction
- Engine Shutoff Solenoid Malfunction
- Ambient Air Temperature Sensor Circuit Low
- Cylinder 10 Contribution/balance Fault
- Crankshaft Position Sensor B Circuit Malfunction
What To Check After Fixing 07121 Code
- Inspect all the connections ignition coil 'g' primary control, short to plus
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns