VW Code 28901

28901 Description And Summary :
The instrument cluster alerts the driver to the fault fuel mixture control adjustment range 3, lower limit not reached retarded timing position, the engine might refuse to start coolant circulation pump relay (j151), open circuit and wait then exhaust bank 4, sensor 2 heater circuit, electrical error is the final reason of the code.

28901 Possible Causes:

28901 vw fault code may be caused by one or more of the following:

Shift Solenoid E Performance or Stuck Off
Reverse Input Circuit
Crankshaft Position Sensor B Circuit Malfunction
Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
Timing Reference High Resolution Signal A Too Many Pulses
Crankshaft Position Sensor A Circuit Malfunction
Ignition/Distributor Engine Speed Input Circuit Malfunction

What To Check After Fixing 28901 Code

Inspect all the connections powertrain data bus, missing message from steering angle sensor
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

28901 Fault Code For Volkswagen Vehicles

The fault code 28901 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 28901 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