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On my 2011 GMC 2500HD, how can I rest P204F code?

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On my 2011 GMC 2500HD, how can I rest P204F code?

Vehicle: 2011 GMC 2500HD

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Possible causes:

  • Faulty Emission Reduction Fluid Injector
  • Emission Reduction Fluid Injector harness is open or shorted 
  • Emission Reduction Fluid Injector circuit poor electrical connection 
  • Faulty Reductant Pump Motor

P204F GMC Code - Reductant System Performance Bank 1
Read more: https://www.autocodes.com/p204f_gmc.html

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