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2014 MITSUBISHI OUTLANDER
2.4L I4•FWD•CVT•gas
4 active safety recalls on this vehicle — view recalls
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Repairs0Labor489Torque776Fluid7DTC1848Battery1Maintenance0Recalls4
P1240high severityPowertrain

Boost Pressure Control System Malfunction

on 2014 Mitsubishi Outlander 2.4L I4 · FWD

What this code means

The turbocharger boost pressure control system is not maintaining proper boost. This is a Mitsubishi-specific code related to generic OBD boost codes P0234/P0299.

Symptoms

  • Loss of power
  • Turbo overboost or underboost
  • Check engine light on

Common causes

  • Faulty boost control solenoid
  • Vacuum or boost leak
  • Wastegate actuator fault
  • Wiring or connector fault

Diagnostic steps

  1. Scan for stored codes
  2. Inspect boost hoses and connections
  3. Test boost control solenoid
  4. Check wastegate actuator operation
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Other Powertrain codes on this vehicle

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