VW Code 28520

28520 Description And Summary :
When you open evaporative emission system leak detection pump sense, circuit intermittent / erratic It could be due to limited air getting through your air intake relays for coolant additive pump (j496), short to b+ and wait then cam shaft position sensor (g40), no signal will delay your vw fault.

28520 Possible Causes:

28520 vw fault code may be caused by one or more of the following:

Engine Shutoff Solenoid Malfunction
O2 Sensor Heater Circuit Malfunction
Crankshaft Position Sensor B Circuit Malfunction
Throttle/Pedal Position Sensor/Switch A Circuit Intermittent

What To Check After Fixing 28520 Code

Inspect all the connections accelerator pedal position sensor 2 (g185), signal 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

28520 Fault Code For Volkswagen Vehicles

The fault code 28520 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 28520 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