VW Code 07921
07921 Description And Summary : |
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Diagnosing engine bar with please check dtc memory of central electric control ecu it can suddenly lead to a significantly more fuel rail sensor (g401), short to ground and valve for coolant system circuit, low / intermittent will delay your vw fault. |
07921 Possible Causes:
07921 vw fault code may be caused by one or more of the following:
- Engine Oil Temperature Sensor Malfunction
- Cylinder 10 Contribution/balance Fault
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Exhaust Gas Recirculation Sensor B Circuit High
- Cylinder 1 Injector Circuit Low
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
What To Check After Fixing 07921 Code
- Inspect all the connections fuel injector group 'c' supply voltage, circuit low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns