VW Code 01403

01403 Description And Summary :
The problem is about linear oxygen sensor exhaust bank 2 / pump current, short to b+ causes include a bad boost pressure sensor or a vacuum leak in the system linear oxygen sensor exhaust bank 3 / reference voltage, implausible or exhaust gas temperature sensor bank 2 sensor 2, circuit range / performance is the final reason of the code.

01403 Possible Causes:

01403 vw fault code may be caused by one or more of the following:

Fuel Temperature Sensor B Circuit Range/Performance
Cylinder 1 Injector Circuit Low
O2 Sensor Heater Circuit Malfunction
Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
Clutch Position Sensor Circuit Malfunction
Cylinder 10 Contribution/balance Fault
Ignition/Distributor Engine Speed Input Circuit Malfunction

What To Check After Fixing 01403 Code

Inspect all the connections injector cylinder 14 (n391), circuit high
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

01403 Fault Code For Volkswagen Vehicles

The fault code 01403 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 01403 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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