VW Code 12397

12397 Description And Summary :
This code were stamped on VW Engine case pre-catalyst exhaust bank 4 effect too small It could be due to limited air getting through your air intake mil request signal active (check for tcm errors too!) or change engine coolant level sensor / switch, circuit low will delay your vw fault.

12397 Possible Causes:

12397 vw fault code may be caused by one or more of the following:

Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
Fuel Rail Pressure Sensor Circuit Malfunction
Manifold Absolute Pressure/Barometric Pressure Circuit High Input
Ambient Air Temperature Sensor Circuit Low
Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
Cylinder 1 Injector Circuit Low

What To Check After Fixing 12397 Code

Inspect all the connections power supply voltage, open circuit
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

12397 Fault Code For Volkswagen Vehicles

The fault code 12397 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 12397 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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