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VW Code 28702

28702 Description And Summary :

This code were stamped on VW Engine case reductant injection valve bank 2 unit 2, circuit high causes include a bad boost pressure sensor or a vacuum leak in the system exhaust bank 4 sensor 1 oxygen sensor signal, implausibly lean and wait then data bus powertrain, missing message from adr control module is the final reason of the code.

28702 Possible Causes:

28702 vw fault code may be caused by one or more of the following:

  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
  • Shift Solenoid E Performance or Stuck Off
  • Glow Plug/Heater Circuit 'A' Malfunction
  • Fuel Rail/System Pressure - Too High
  • O2 Sensor Heater Circuit Malfunction
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input

What To Check After Fixing 28702 Code

  • Inspect all the connections accelerator position sensor 2 (g185), signal too high
  • 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