3.2.6. SPN 102, FMI 0, Boost pressure HIGHΒΆ

Description

The measured boost pressure rises above the maximum limit during operation.

Possible causes are:

  • Too high fuel injection quantity (mg/str) for the engine type (tuning chip).
  • Incorrect nozzles for the engine type.
  • An incorrect turbo charger for the engine type.
  • The turbo waste gate is stuck to close.

Reaction in EEM

The FC is stored and the warning lamp is activated. Engine power will be reduced (Degradation Level 2). The CAN message indicates active fault. No recovery before system reset.

Solution

Find the cause for the high boost pressure indication:

  • Check that the control system is configured according to the original specification, and that no additional devices have been attached.
  • Check that the nozzles and the turbocharger meet the original specifications.
  • Check that the turbo waste gate can be moved by hand when the waste gate actuator has no power.