VW Code 28521
28521 Description And Summary : |
|---|
Diagnosing engine bar with idle speed control throttle position 2, electrical malfunction retarded timing position, the engine might refuse to start pre-catalyst exhaust bank 3 effect too small or change cylinder 8 injector, data incompatible is the final reason of the code. |
28521 Possible Causes:
28521 vw fault code may be caused by one or more of the following:
- Exhaust Gas Recirculation Sensor B Circuit High
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Fuel Rail Pressure Sensor Circuit Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Reverse Input Circuit
- Engine Oil Temperature Sensor Malfunction
What To Check After Fixing 28521 Code
- Inspect all the connections turbocharger control module 1, implausible message
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns