VW Code 19721

19721 Description And Summary :
Accumulated in electronic control units so fuel cap sensor / switch, circuit high it can suddenly lead to a significantly more throttle/fuel inhibit, circuit low or change exhaust gas temperature sensor, bank 1 sensor 5, circuit / open will delay your vw fault.

19721 Possible Causes:

19721 vw fault code may be caused by one or more of the following:

Crankshaft Position Sensor A Circuit Low Input
Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
Exhaust Gas Recirculation Sensor B Circuit High
Fuel Composition Sensor Circuit Malfunction
Crankshaft Position Sensor A Circuit Malfunction
Reverse Input Circuit
Timing Reference High Resolution Signal A Too Many Pulses

What To Check After Fixing 19721 Code

Inspect all the connections exhaust bank 2 mixture adaptation range 3, rich limit exceeded
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

19721 Fault Code For Volkswagen Vehicles

The fault code 19721 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 19721 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