Power Solutions International, Inc.

DTC 2 99

UnclassifiedAir Intake

What This Code Means

MIL ON; Engine shutdown; Slave MAP is 1.5 psi lower than master MAP; Boost on the secondary side is lower than the boost on the primary side

Possible Causes

  • •Misfire condition
  • •Partial misfire from valve lash
  • •Lack of compression
  • •Leak in the CAC system (boots, clamps, CAC)
  • •Turbo wastegate not adjusted properly
  • •Turbo wastegate sticking
  • •Suspect or sticking throttle body
  • •Faulty turbo not making boost

Suggested Actions

  1. 1Check all hose clamps on the CAC piping to make sure they are properly clamped and tight
  2. 2Check for tears in any of the silicone boots
  3. 3Inspect boots and clamps located underneath the bridge over the valley of the engine by the ECUs for looseness due to vibration

Related Power Solutions International, Inc. Fault Codes

DTC 15 74DTC 16DTC 2 34DTC 18 7DTC - 520DTC 22 2DTC - 359DTC 89 20DTC 107520240:3DTC 108
Browse all Power Solutions International, Inc. fault codes

ASK RUDY ABOUT THIS FAULT

Get a diagnosis walkthrough for DTC 2 99 on your specific Power Solutions International, Inc. unit — cited to the OEM manual, not a forum guess.

TRY IT FREE