Code No. P2263: Supercharging pressure System Malfunction


FUNCTION



  • The engine-ECU checks whether the intake air for the engine is sufficient or not by monitoring the amount of intake air.

TROUBLE JUDGMENT


Check Conditions
  • Engine speed is more than 3,000 r/min and is less than 5,000 r/min.
  • Throttle position sensor (main) output voltage is more than 2 V.
Judgment Criterion
  • Volumetric efficiency is less than 100 % for 2 seconds.
FAIL-SAFE AND BACKUP FUNCTION
  • None.

PROBABLE CAUSES



  • Failed supercharging pressure control system
  • Failed supercharging pressure
  • Failed engine-ECU

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III actuator test

  • Item 20: Waste gate solenoid valve
OK: Operating sound can be heard and the valve vibrates

Q. Is the check result normal?
Go to Step 2.
Check waste gate solenoid valve system. (Refer to Code No. P0243: Waste Gate Solenoid Valve System )

STEP 2. Check air intake from inlet hose and inlet manifold.

Q. Is the check result normal?
Go to Step 3.
Repair.

STEP 3. Check supercharging pressure.

  • Check supercharging pressure (Refer to GROUP 15 - On-vehicle Service - Supercharging Pressure Check ).

Q. Is the check result normal?
Go to Step 4.
Repair.

STEP 4. Check supercharging pressure control system.

  • Check supercharging pressure control system (Refer to GROUP 15 - On-vehicle Service - Supercharging Pressure Control System Check ).

Q. Is the check result normal?
Go to Step 5.
Repair.

STEP 5. Check waste gate actuator itself.

  • Check waste gate actuator itself (Refer to GROUP 15 - On-vehicle Service - Waste Gate Actuator Check ).

Q. Is the check result normal?
Go to Step 6.
Replace the waste gate actuator.

STEP 6. M.U.T.-III diagnosis code.

  • Reconfirmation of diagnosis code.

Q. Is diagnosis code set?
Replace the engine-ECU.
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).