VW Code 05621

05621 Description And Summary :
When you open supply voltage for fuel injector group a, short to b+ It could be due to limited air getting through your air intake secondary air injection system air flow/pressure sensor bank 1, circuit high . On the other hand control module defective will delay your vw fault.

05621 Possible Causes:

05621 vw fault code may be caused by one or more of the following:

Timing Reference High Resolution Signal A Too Many Pulses
Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
Clutch Position Sensor Circuit Malfunction
Engine Oil Temperature Sensor Malfunction
Ambient Air Temperature Sensor Circuit Low
Fuel Rail Pressure Sensor Circuit Malfunction
Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)

What To Check After Fixing 05621 Code

Inspect all the connections fuel additive control module requested mil illumination
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

05621 Fault Code For Volkswagen Vehicles

The fault code 05621 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 05621 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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