Limp Mode Triggers and Recovery Conditions

🧠 Part of the TuningBot ECU Knowledge Base — in-depth documentation on ECU logic, maps, emissions systems and safe calibration methods.

Limp mode severely restricts engine performance to protect components.

Common Triggers

  • Sensor failures (MAF, MAP, TPS)
  • Actuator faults (VGT, EGR)
  • Overboost/underboost
  • Torque monitoring intervention
  • Overheat conditions

Recovery Types

  • Automatic — condition resolves
  • Key cycle — restart clears
  • Drive cycle — fault absent for X cycles
  • Diagnostic reset — scan tool required

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