Required Special Tools:

MB991958: Scan Tool (M.U.T.-III Sub Assembly)
- MB991824: V.C.I.
- MB991827: M.U.T.-III USB Cable
- MB991910: M.U.T.-III Main Harness A

CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958.

After the ignition switch is in "LOCK" (OFF) position, connect scan tool MB991958 to the data link connector.
Turn the ignition switch to the "ON" position.
Select "MFI" from System select Screen of scan tool MB991958.
Select "Special Function" from MFI Screen.
Select "Learned value reset" from Special Function Screen.
Select "All learned value" from Learned value reset Screen
Initialize the learning value by pressing the "OK" button.
After initializing the learning value, the learning value of MFI engine idling is necessary. (Refer to LEARNING PROCEDURE FOR IDLING IN MFI ENGINE ).

Fig 1: Connecting Scan Tool To Data Link Connector
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Initialization Procedure

Use the Manual With the Right Hardware

When to See a Mechanic

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