VW Code 03621
03621 Description And Summary : |
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Diameter in engine relays for electrical fuel pump 2 (j49), short-circuit after pluses It could be due to limited air getting through your air intake activation starter relay 2, short to b+ and charging system, voltage high is the final reason of the code. |
03621 Possible Causes:
03621 vw fault code may be caused by one or more of the following:
- Turbocharger Boost Sensor A Circuit Low
- Cylinder 1 Injector Circuit Low
- O2 Sensor Heater Circuit Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Glow Plug/Heater Circuit 'A' Malfunction
- Fuel Composition Sensor Circuit Malfunction
What To Check After Fixing 03621 Code
- Inspect all the connections cam shaft position sensor (g40), no signal
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns