VW Code 15631

15631 Description And Summary :
Staring in engine system too lean at higher load, bank 1 It could be due to limited air getting through your air intake oxygen (lambda) sensor b2 s1, heater return coupling and wait then linear oxygen sensor exhaust bank 2 / reference voltage, short to ground is the final reason of the code.

15631 Possible Causes:

15631 vw fault code may be caused by one or more of the following:

Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
Ignition/Distributor Engine Speed Input Circuit Malfunction
Timing Reference High Resolution Signal A Too Many Pulses
Injector Circuit Malfunction - Cylinders
Cold Start Injector 1 Malfunction
Fuel Rail/System Pressure - Too High
Clutch Position Sensor Circuit Malfunction
Cylinder 1 Injector Circuit Low

What To Check After Fixing 15631 Code

Inspect all the connections throttle position (tp) sensor (g79), error message from ecm
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

15631 Fault Code For Volkswagen Vehicles

The fault code 15631 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 15631 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

VW 001 - 196 Code Range

Page 1

VW 00000 - 19900 Code Range

VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range

Page 24