VW Code 12103

12103 Description And Summary :
Diameter in engine evaporative emissions (evap) fuel vapour temperature sensor, circuit low voltage run rough, or might suddenly stall at any given speed ng high pressure valve (n372), short to ground also will delay your vw fault.

12103 Possible Causes:

12103 vw fault code may be caused by one or more of the following:

Cylinder 4 Contribution/Balance Fault
Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
Glow Plug/Heater Circuit 'A' Malfunction
Injector Circuit Malfunction - Cylinders
Clutch Position Sensor Circuit Malfunction

What To Check After Fixing 12103 Code

Inspect all the connections secondary air injection system control 'b', circuit high
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

12103 Fault Code For Volkswagen Vehicles

The fault code 12103 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 12103 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