Technical Service Bulletin Correcting Engine Misfiring

Subject: Correcting Engine Misfiring      Models: 928, 911 Turbo ALL

Bulletin Number: 80 – 1

Engine misfiring may result from fuel restriction to one or more injectors

correcting engine misfiring
  •  Check for loose fuel filter screens in fuel outlet ports of fuel distributor.
  • If loose, replace all 8 bolts with new bolts, Part # 930.110.547.00


Do not replace outlet port filter screens or fuel distributor unless replacement of bolts fails to correct misfiring.

  • Clean filter in fuel feedline adapter
  • Run engine and check performance

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