Engine-Codes - Mitsubishi - P0234 Mitsubishi

P0234 Mitsubishi Code - Turbocharger Wastegate System Malfunction

- Code Popularity: 27,037 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
ChatAC AutoCodes.com AI Chat

What are the Possible Causes of the DTC P0234 Mitsubishi?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Turbocharger wastegate actuator failure
  • Charging pressure control system faulty
⚠ Does your Mitsubishi have Safety Recalls? → Check here

How to Fix the DTC P0234 Mitsubishi?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Search for P0234 Mitsubishi Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P0234 Mitsubishi code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

What Does the P0234 Mitsubishi Code Mean?

The boost pressure sensor responds to pressure changes in the intake manifold. This pressure is created by the turbocharger and changes with accelerator pedal position (APP) and engine speed. The Engine Control Module (ECM) uses this information to assist in diagnosis of the barometric pressure (BARO) sensor and to provide engine overboost protection. The boost pressure sensor has a 5-volt reference circuit, a low reference circuit, and a signal circuit. The Engine Control Module (ECM) supplies 5 volts to the boost pressure sensor on the 5-volt reference 2 circuit, and provides a ground on a low reference circuit. The boost pressure sensor provides a signal to the ECM on a signal circuit relative to the pressure changes. The ECM monitors the boost pressure sensor signal for voltage outside of the normal range. The ECM calculates a predicted value for the boost pressure sensor. The ECM then compares the predicted value to the actual signal.
P0234 Mitsubishi Code - Turbocharger Wastegate System Malfunction

Need more Information on the Code?

Need more information on how to fix the P0234 Mitsubishi code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0234 Mitsubishi code diagnosed by a professional: Find a repair shop in your area