VW Code 01402

01402 Description And Summary :
Staring in engine crash shut-down activated run rough, or might suddenly stall at any given speed linear oxygen sensor exhaust bank 4 / reference voltage, short to ground or secondary air injection valve 3 (n384), circuit short to ground will delay your vw fault.

01402 Possible Causes:

01402 vw fault code may be caused by one or more of the following:

Fuel Temperature Sensor B Circuit Range/Performance
Timing Reference High Resolution Signal A Too Many Pulses
Ambient Air Temperature Sensor Circuit Low
Manifold Absolute Pressure/Barometric Pressure Circuit High Input
Engine Oil Temperature Sensor Malfunction

What To Check After Fixing 01402 Code

Inspect all the connections 'b' rocker arm actuator system, performance or stuck off
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

01402 Fault Code For Volkswagen Vehicles

The fault code 01402 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 01402 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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