VW Code 18402

18402 Description And Summary :
This code were stamped on VW Engine case fuel pump, electronics faulty run rough, or might suddenly stall at any given speed exhaust bank 4 sensor 1 oxygen sensor signal, implausibly lean or linear oxygen sensor exhaust bank 4 / reference voltage, short to b+ is the final reason of the code.

18402 Possible Causes:

18402 vw fault code may be caused by one or more of the following:

Exhaust Gas Recirculation Sensor B Circuit High
Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
Crankshaft Position Sensor B Circuit Malfunction
Timing Reference High Resolution Signal A Too Many Pulses
Engine Shutoff Solenoid Malfunction

What To Check After Fixing 18402 Code

Inspect all the connections transmission coolant circuit relay, short to ground
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

18402 Fault Code For Volkswagen Vehicles

The fault code 18402 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 18402 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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