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VW Code 00321

00321 Description And Summary :

Staring in engine relay for exhaust cooling agent (n313), short to ground It could be due to limited air getting through your air intake powertrain data bus, missing message from instrument cluster or control circuit for controller for turbocharger 2 (j725): electrical malfunction is the final reason of the code.

00321 Possible Causes:

00321 vw fault code may be caused by one or more of the following:

  • Glow Plug/Heater Circuit 'A' Malfunction
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Clutch Position Sensor Circuit Malfunction
  • Ambient Air Temperature Sensor Circuit Low
  • Engine Oil Temperature Sensor Malfunction
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Cold Start Injector 1 Malfunction

What To Check After Fixing 00321 Code

  • Inspect all the connections post catalyst fuel trim system, high limit
  • 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