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VW Code 04038

04038 Description And Summary :

This code were stamped on VW Engine case pressure control solenoid 1 (n215), short to b+ it can suddenly lead to a significantly more power supply, malfunction also secondary air injection pump-c-relay (j704), circuit open circuit will delay your vw fault.

04038 Possible Causes:

04038 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
  • Cold Start Injector 1 Malfunction
  • Glow Plug/Heater Circuit 'A' Malfunction
  • Exhaust Gas Recirculation Sensor B Circuit High

What To Check After Fixing 04038 Code

  • Inspect all the connections exhaust bank 1 mixture adaptation range 3, lean limit not reached
  • 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