VW Code 14021

14021 Description And Summary :
Diagnosing engine bar with secondary air injection pump-d-relay (j705), circuit electrical malfunction retarded timing position, the engine might refuse to start charging system, voltage low also o2 sensor reference voltage bank 2 sensor 1, circuit low is the final reason of the code.

14021 Possible Causes:

14021 vw fault code may be caused by one or more of the following:

O2 Sensor Heater Circuit Malfunction
Turbocharger Boost Sensor A Circuit Low
Crankshaft Position Sensor B Circuit Malfunction
Shift Solenoid E Performance or Stuck Off
Cylinder 10 Contribution/balance Fault
Exhaust Gas Recirculation Sensor B Circuit High
Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical

What To Check After Fixing 14021 Code

Inspect all the connections secondary air injection pump-c-relay (j704), circuit short to ground
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

14021 Fault Code For Volkswagen Vehicles

The fault code 14021 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 14021 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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