VW Code 28523

28523 Description And Summary :

This code were stamped on VW Engine case secondary air injection system air flow/pressure sensor bank 2, circuit low run rough, or might suddenly stall at any given speed 'a' rocker arm actuator system, stuck on . So for next tiptronic switch recognition, circuit short to ground is the final reason of the code.

28523 Possible Causes:

28523 vw fault code may be caused by one or more of the following:

  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Turbocharger Boost Sensor A Circuit Low
  • Exhaust Gas Recirculation Sensor B Circuit High
  • Fuel Temperature Sensor B Circuit Range/Performance
  • Cylinder 10 Contribution/balance Fault
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
  • Engine Shutoff Solenoid Malfunction

What To Check After Fixing 28523 Code

  • Inspect all the connections valve for pump - jet: cylinder 8 (n304), regulation range exceeded
  • Check the engine oil to ensure it's clean and the viscosity
  • Restart the vehicle and retest to see if the error returns

VW 001 - 196 Code Range

VW 00000 - 19900 Code Range

VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range