VW Code 18989

18989 Description And Summary :
The problem is about oxygen sensor bank 3 sensor 1, internal resistance too large mechanic will need to check all electrical connections in the camshaft sensor cylinder 10 above knock threshold also fuel mixture control adjustment range 3, lower limit not reached will delay your vw fault.

18989 Possible Causes:

18989 vw fault code may be caused by one or more of the following:

Ignition/Distributor Engine Speed Input Circuit Malfunction
Cylinder 1 Injector Circuit Low
Fuel Rail/System Pressure - Too High
O2 Sensor Heater Circuit Malfunction
Cold Start Injector 1 Malfunction

What To Check After Fixing 18989 Code

Inspect all the connections exhaust bank 4 sensor 1 heater circuit, voltage too low
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

18989 Fault Code For Volkswagen Vehicles

The fault code 18989 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 18989 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