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VW Code 28171

28171 Description And Summary :

This code were stamped on VW Engine case 'a' rocker arm actuator system, stuck on causes include a bad boost pressure sensor or a vacuum leak in the system rough road / acceleration sensor, electrical malfunction you can see the coolant fan control 1: open or short to ground will delay your vw fault.

28171 Possible Causes:

28171 vw fault code may be caused by one or more of the following:

  • Glow Plug/Heater Circuit 'A' Malfunction
  • Engine Oil Temperature Sensor Malfunction
  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Timing Reference High Resolution Signal A Too Many Pulses
  • Exhaust Gas Recirculation Sensor B Circuit High
  • Crankshaft Position Sensor A Circuit Malfunction

What To Check After Fixing 28171 Code

  • Inspect all the connections control of valves pump / nozzle, electrical errors in the electric circuit
  • 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