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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.8L ENGINE> 13B-717 (6) Connect the evaporative emission system pressure pump (Miller number 6872A) to the fuel tank filler tube by using fuel tank adapter (MLR-8382) and pressurize the fuel tank. • The fuel tank pressure reading should increase. (7) Turn the ignition switch to the "LOCK" (OFF) position. Then disconnect scan tool MB991958. (8) Remove the evaporative emission system pressure pump (Miller number 6872A) and the fuel tank adapter (9) Connect hose H to the evaporative emission canister. −1.5 and 1.5 kPa ( −0.443 and 0.443 inHg)? YES : It can be assumed that this malfunction is intermittent (Refer to GROUP 00, How to Use − How to Cope with Intermittent Malfunctions ). Go to Step 17. NO : Go to Step 2. AC306661 |