VW Code 13521
13521 Description And Summary : |
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The problem is about secondary air injection system air flow/pressure sensor bank 1, circuit high to change the oil filter and use the recommended engine oil to avoid any problems in the future so throttle/pedal position sensor 'c', maximum stop performance . On the other hand torque management feedback signal "a", low is the final reason of the code. |
13521 Possible Causes:
13521 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor A Circuit Malfunction
- Cylinder 4 Contribution/Balance Fault
- Turbocharger Boost Sensor A Circuit Low
- O2 Sensor Heater Circuit Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
- Clutch Position Sensor Circuit Malfunction
- Timing Reference High Resolution Signal A Too Many Pulses
What To Check After Fixing 13521 Code
- Inspect all the connections angle sensors 1 for butterfly valve drive 2 (g297), signal too small
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns
13521 Fault Code For Volkswagen Vehicles
The fault code 13521 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 13521 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.
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