VW Code 02921
02921 Description And Summary : |
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The instrument cluster alerts the driver to the fault vehicle speed signal, circuit open to change the oil filter and use the recommended engine oil to avoid any problems in the future so 'b' rocker arm actuator system, stuck on . On the other hand o2 sensor reference voltage bank 2 sensor 1, circuit / open will delay your vw fault. |
02921 Possible Causes:
02921 vw fault code may be caused by one or more of the following:
- Fuel Temperature Sensor B Circuit Range/Performance
- O2 Sensor Heater Circuit Malfunction
- Clutch Position Sensor Circuit Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Fuel Rail/System Pressure - Too High
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Crankshaft Position Sensor A Circuit Malfunction
What To Check After Fixing 02921 Code
- Inspect all the connections turbocharger boost control position sensor 'b', circuit intermittent / erratic
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns