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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) 13A-769 STEP 4. Using scan tool MB991958, check actuator test. Actuator Test Reference Table a. Item 10: EGR Vacuum Regulator Solenoid Valve. (3) Turn the ignition switch to the "LOCK" (OFF) position. YES : Go to Step 5. symptom is eliminated. STEP 5. Using scan tool MB991958, check data list item 45: 45, Idle Air Control Position. a. The idle air control motor should drop to the 0 − 2 posi- tion during deceleration (from 1,000 r/min or more). (3) Turn the ignition switch to the "LOCK" (OFF) position. YES : Check the following items, and repair, replace, clean or adjust the defective sections. a. Check the ignition coil, spark plugs, spark plug cables. b. Refer to On-vehicle Service - Check the throttle valve area Then confirm that the malfunction symptom is eliminated. NO : Refer to, GROUP 23A, Automatic Transaxle Diagnosis − Diagnostic Trouble Code Chart AK303629AB MB991911 MB991827 MB991824 16-PIN AK303629AB MB991911 MB991827 MB991824 16-PIN |