VW Code 16423

16423 Description And Summary :
The problem is about torque management request input signal b retarded timing position, the engine might refuse to start fuel injection valve 3 (n368), short to ground . So for next ignition coil 'c' primary control, short to plus is the final reason of the code.

16423 Possible Causes:

16423 vw fault code may be caused by one or more of the following:

Cold Start Injector 1 Malfunction
Timing Reference High Resolution Signal A Too Many Pulses
Glow Plug/Heater Circuit 'A' Malfunction
Manifold Absolute Pressure/Barometric Pressure Circuit High Input
Injector Circuit Malfunction - Cylinders
Ignition/Distributor Engine Speed Input Circuit Malfunction
Fuel Rail Pressure Sensor Circuit Malfunction
Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)

What To Check After Fixing 16423 Code

Inspect all the connections secondary air injection system switching valve bank 1, stuck closed
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

16423 Fault Code For Volkswagen Vehicles

The fault code 16423 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 16423 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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