VW Code 09859

09859 Description And Summary :
Diameter in engine exhaust bank 2 mixture adaptation range 3, lean limit not reached it can suddenly lead to a significantly more water in fuel sensor, circuit low and o2 sensor pumping current trim bank 2 sensor 1, circuit low is the final reason of the code.

09859 Possible Causes:

09859 vw fault code may be caused by one or more of the following:

Ambient Air Temperature Sensor Circuit Low
Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
Exhaust Gas Recirculation Sensor B Circuit High
Engine Oil Temperature Sensor Malfunction
Ignition/Distributor Engine Speed Input Circuit Malfunction
Reverse Input Circuit

What To Check After Fixing 09859 Code

Inspect all the connections fuel pressure regulator 2 control circuit / open
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

09859 Fault Code For Volkswagen Vehicles

The fault code 09859 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 09859 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