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MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <2.4L> 13A-253 STEP 7. Pressure test for evaporator line from hose B to ventilation solenoid side, and plug the hoses from which the (2) Confirm that the evaporative emission system pressure pump (Miller number 6872A) is operating properly. Perform (3) Connect an evaporative emission system pressure pump to the fuel filler neck. (4) Pressure test the system to determine whether any leaks are present. NOTE: "Pressure test" in this procedure refers to the I/ Q: Are there any leaks in the evaporator line? YES : Go to Step 8. STEP 8. Pressure test for evaporator line from hose G to side, and plug the hose from which the pipes have been (2) Perform the pressure test again. Q: Is the pressure maintained inside the evaporator line? YES : Go to Step 9. STEP 9. Check for leaks in the evaporator line hose B and from hose B and hose C. Q: Can the leaks be pinpointed? YES : Replace that hose. Then go to Step 34. AC002028 HOSE E AC AC000186 AC002036 AC HOSE G AC000223 HOSE B AC HOSE C |