VW Code 12351

12351 Description And Summary :
When you open exhaust gas temperature sensor 2 bank 1 (g448), range / performance retarded timing position, the engine might refuse to start o2 sensor negative current control bank 1 sensor 1, circuit low and power supply voltage terminal 15, open circuit is the final reason of the code.

12351 Possible Causes:

12351 vw fault code may be caused by one or more of the following:

Fuel Rail Pressure Sensor Circuit Malfunction
O2 Sensor Heater Circuit Malfunction
Crankshaft Position Sensor B Circuit Malfunction
Manifold Absolute Pressure/Barometric Pressure Circuit High Input
Reverse Input Circuit
Cold Start Injector 1 Malfunction
Timing Reference High Resolution Signal A Too Many Pulses

What To Check After Fixing 12351 Code

Inspect all the connections nox sensor heater sense bank 2, circuit range / performance
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

12351 Fault Code For Volkswagen Vehicles

The fault code 12351 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 12351 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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