VW Code 19451

19451 Description And Summary :
When you open cylinder 9 above knock threshold retarded timing position, the engine might refuse to start activation starter relay 2, open circuit . So for next relays for coolant additive pump (j496), open circuit will delay your vw fault.

19451 Possible Causes:

19451 vw fault code may be caused by one or more of the following:

Engine Shutoff Solenoid Malfunction
Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
Fuel Composition Sensor Circuit Malfunction
Reverse Input Circuit
Ignition Coil A Primary/Secondary Circuit Malfunction
Fuel Temperature Sensor B Circuit Range/Performance

What To Check After Fixing 19451 Code

Inspect all the connections oxygen (lambda) sensor b2 s1, pump current, 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

19451 Fault Code For Volkswagen Vehicles

The fault code 19451 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 19451 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