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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) 13A-539 STEP 17. Using scan tool MB991958, check evaporative CAUTION • To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before • During this test, the PCM automatically increases the engine speed to 1,600 r/min or greater. Check that the (1) Connect scan tool MB991958 to the data link connector. three clicks are heard). (5) Start the engine. position. (9) Keep the engine speed and engine load within the specified range. When the monitor test starts, the "In Progress" item (10)Turn the ignition switch to the "LOCK" (OFF) position and disconnect scan tool MB991958. Q: Is "Evap Leak Mon. Completed. Test Failed and DTCs Set" displayed on scan tool MB991958? ). Then go to Step 18 . NO <"Evap Leak Mon. Completed. Test Passed" is emission system is working properly at this time. Then NO <"Evap Leak Mon. Discontinued. Retest again from EVAP monitor has been interrupted during the test. STEP 18. Perform the OBD-II drive cycle. (Refer to Diagnostic Function − OBD-ll Drive Cycle − Procedure 1 − Evaporative Emission System Leak Monitor ). (2) Read the diagnostic trouble code (DTC). YES : Repeat the troubleshooting from Step 1. AC306409AF MB991911 MB991824 MB991827 |