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MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <2.4L> 13A-341 STEP 3. Using scan tool MB991502, check data list. CAUTION To prevent damage to scan tool MB991502, always turn the Reference Table( ). a. Item 21: Engine Coolant Temperature Sensor. (4) Turn the ignition switch to the "LOCK" (OFF) position. Q: Are they operating properly? YES : Go to Step 4. symptom is eliminated. STEP 4. Adjust the basic idle speed. Standard value: 700 ±±±± 50 r/min Q: Is the Idle speed normal? YES : Refer to, Clean the throttle valve area( NO : The check is completed. INSPECTION PROCEDURE 10: Idle Speed Is Low (Improper Idle Speed). COMMENT • In cases such as the above, the cause is TROUBLESHOOTING HINTS (The most likely • Malfunction of the IAC system. • Malfunction of the throttle body. DIAGNOSIS Required Special Tool: STEP 1. Using scan tool MB991502, read the diagnostic CAUTION To prevent damage to scan tool MB991502, always turn the Q: Is the DTC output? YES : Refer to, Diagnostic Trouble Code Chart( ). NO : Go to Step 2. AC003081 AB 16 PIN MB991502 AC003081 AB 16 PIN MB991502 |