VW Code 02721
02721 Description And Summary : |
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The problem is about bank 1, system too rich off idle causes include a bad boost pressure sensor or a vacuum leak in the system drive by wire-mil (k132), circuit electrical malfunction . So for next cylinder 10 injector, data incompatible will delay your vw fault. |
02721 Possible Causes:
02721 vw fault code may be caused by one or more of the following:
- Fuel Rail/System Pressure - Too High
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Cylinder 4 Contribution/Balance Fault
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Turbocharger Boost Sensor A Circuit Low
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
What To Check After Fixing 02721 Code
- Inspect all the connections ignition coil 'k' 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