VW Code 09021

09021 Description And Summary :
Accumulated in electronic control units so charge pressure fan relay (j712), open mechanic will need to check all electrical connections in the camshaft sensor valve for exhaust flap 2 (n322), open circuit or change exhaust gas temperature sensor 2 bank 2 (g449), range / performance is the final reason of the code.

09021 Possible Causes:

09021 vw fault code may be caused by one or more of the following:

Cylinder 10 Contribution/balance Fault
O2 Sensor Heater Circuit Malfunction
Ambient Air Temperature Sensor Circuit Low
Crankshaft Position Sensor A Circuit Malfunction
Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
Fuel Temperature Sensor B Circuit Range/Performance

What To Check After Fixing 09021 Code

Inspect all the connections turbocharger boost control position sensor 'b', circuit
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

09021 Fault Code For Volkswagen Vehicles

The fault code 09021 is associated with Volkswagen (VW) vehicles and indicates a specific issue detected by the onboard diagnostics (OBD) system. Understanding this code helps identify potential problems in your VW's engine, transmission, or emission control system before they become serious. This page provides a detailed explanation of the 09021 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

VW 001 - 196 Code Range

Page 1

VW 00000 - 19900 Code Range

VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range

Page 24