VW Code 16521

16521 Description And Summary :
The problem is about crankshaft position signal output, circuit high causes include a bad boost pressure sensor or a vacuum leak in the system turbocharger boost control position sensor, circuit or change please check dtc memory of ecu number 2 will delay your vw fault.

16521 Possible Causes:

16521 vw fault code may be caused by one or more of the following:

Turbocharger Boost Sensor A Circuit Low
Fuel Rail Pressure Sensor Circuit Malfunction
Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
Crankshaft Position Sensor B Circuit Malfunction

What To Check After Fixing 16521 Code

Inspect all the connections fuel level sensor 2, circuit intermittent
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

16521 Fault Code For Volkswagen Vehicles

The fault code 16521 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 16521 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