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MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <2.4L> 13A-233 STEP 24. Check for clogging in the evaporator line from Tank (2) Carry out the clogging test with a hand vacuum pump on each hose from hose E and hose F. Q: Are there any clogs? YES : Replace that hose, reinstall the fuel tank. Then go to Step 26. NO : Go to Step 25. STEP 25. Check for clogging in the evaporative emission evaporative emission canister. (2) Plug the other two nipples or loop a hose between the other nipples. (3) Apply vacuum. When each nipple is unplugged, the vacuum should fluctuate. Q: Does the vacuum pump gauge reading fluctuate? YES : Reinstall the fuel tank. Then go to Step 26. the fuel tank. Then go to Step 26. STEP 26. Test the OBD-II drive cycle. , Procedure 1 − Evaporative Emission Control system Leak Monitor.) (2) Read the diagnostic trouble code P0450 does not reset. Q: Are the DTCs reset? YES : This diagnosis is complete. (If no malfunctions are not found in all steps, an intermittent malfunction is − How to Cope with Intermittent Malfunction NO : Replace the PCM. AC002037 HOSE E HOSE F AF AC000191AB VENT |