Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMITSUBISHI2012OUTLANDER AWD L4-2.4L (4B12)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTESTING AND INSPECTIONSYMPTOM RELATED DIAGNOSTIC PROCEDURESINSPECTION PROCEDURE 13
2012 Mitsubishi Outlander AWD L4-2.4L (4B12)
Inspection Procedure 13
2012 Mitsubishi Outlander AWD L4-2.4L (4B12)SECTION Inspection Procedure 13
Inspection procedure 13: The engine stalls decelerating
COMMENT
- Abnormal air/fuel ratio or other similar defects due to insufficient intake air volume and defective EGR system is suspected to be the causes.
TROUBLESHOOTING HINTS (The most likely causes for this case:)
- Malfunction of the ignition system.
- Dirtiness around throttle valve.
- Malfunction of the EGR system.
- Malfunction of the ECM.
DIAGNOSIS
Required Special Tools:
- MB991958: Scan Tool (M.U.T.-III Sub Assembly)
- MB991824: V.C.I.
- MB991827: USB Cable
- MB991910: Main Harness A
STEP 1. Check if the EGR valve sounds during initialization.
Q. Is the initialization sound heard in the EGR valve?
YES Go to Step 2.
NO EGR Valve (Stepper Motor) Check.
STEP 2. Using scan tool MB991958, read the diagnostic trouble code
(DTC).
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.
(1)Connect scan tool MB991958 to the data link connector.
(2)Turn the ignition switch to the "ON" position.
(3)Read the DTC.
(4)Turn the ignition switch to the "LOCK" (OFF) position.
Q. Is any DTC set?
YES Refer to Diagnostic Trouble Code Chart Multiport Fuel Injection (MFI).
NO Go to Step 3.
STEP 3. Inspection of throttle body (throttle valve area) for dirtiness.
Q. Is the throttle valve area dirty?
YES Refer to Throttle Body (Throttle Valve Area) Cleaning Throttle Body Cleaning.
NO Go to Step 4.
STEP 4. Using scan tool MB991958, check data list.
(1)Turn the ignition switch to the "ON" position.
(2)Check the following items in the data list. Refer to Data List Reference Table Data List Reference Table.
1. Item 11: Accelerator Pedal Position Sensor (main).
2. Item 12: Accelerator Pedal Position Sensor (sub).
3. Item 13: Throttle Position Sensor (main).
4. Item 15: Throttle Position Sensor (sub).
(3)Turn the ignition switch to the "LOCK" (OFF) position.
Q. Are they operating properly?
YES Go to Step 5.
NO Repair or replace it. Then confirm that the malfunction symptom is eliminated.
STEP 5. Check the spark plugs.
Procedures.
Q. Are there any abnormalities?
YES Replace the spark plug. Then confirm that the malfunction symptom is eliminated.
NO Check the ignition coil Testing and Inspection). Then confirm that the malfunction symptom is eliminated.
RENDER: 1.0x
NO RELATED
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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.