VW Code 04721

04721 Description And Summary :
This something to do with the intake camshaft timing intake manifold tuning (imt) valve position sensor / switch bank 1, circuit high retarded timing position, the engine might refuse to start o2 sensor pumping current trim bank 2 sensor 1, circuit low or change relay for exhaust cooling agent (n313), open circuit will delay your vw fault.

04721 Possible Causes:

04721 vw fault code may be caused by one or more of the following:

Shift Solenoid E Performance or Stuck Off
Glow Plug/Heater Circuit 'A' Malfunction
Fuel Rail Pressure Sensor Circuit Malfunction
O2 Sensor Heater Circuit Malfunction
Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
Crankshaft Position Sensor B Circuit Malfunction
Cylinder 1 Injector Circuit Low

What To Check After Fixing 04721 Code

Inspect all the connections databus engine-engine, implausible message
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

04721 Fault Code For Volkswagen Vehicles

The fault code 04721 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 04721 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