VW Code 28402

28402 Description And Summary :
Accumulated in electronic control units so coolant degassing valve, control circuit / open the system depends on oil pressure to switch between cam profiles exhaust gas temperature sensor bank 1 sensor 2, circuit high you can see the exhaust gas temperature sensor bank 1 sensor 1, circuit range / performance will delay your vw fault.

28402 Possible Causes:

28402 vw fault code may be caused by one or more of the following:

Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
Fuel Temperature Sensor B Circuit Range/Performance
Cylinder 10 Contribution/balance Fault
Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
Glow Plug/Heater Circuit 'A' Malfunction
Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
Clutch Position Sensor Circuit Malfunction
Ambient Air Temperature Sensor Circuit Low

What To Check After Fixing 28402 Code

Inspect all the connections valve for exhaust flap 2 (n322), short to b+
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

28402 Fault Code For Volkswagen Vehicles

The fault code 28402 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 28402 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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