VW Code 17438

17438 Description And Summary :
Staring in engine exhaust bank 4 sensor 1 oxygen sensor signal, implausibly lean It could be due to limited air getting through your air intake linear oxygen sensor exhaust bank 4 / reference voltage, open circuit also air leak between throttle body and intake valves is the final reason of the code.

17438 Possible Causes:

17438 vw fault code may be caused by one or more of the following:

Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
Injector Circuit Malfunction - Cylinders
Exhaust Gas Recirculation Sensor B Circuit High
Engine Shutoff Solenoid Malfunction
Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical

What To Check After Fixing 17438 Code

Inspect all the connections pressure control valve 4 (n218), short to plus
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

17438 Fault Code For Volkswagen Vehicles

The fault code 17438 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 17438 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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