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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.0L> 13B-1039 STEP 10. Check the fuel pump operation. (2) Use jumper wires to connect fuel pump connector terminal 5 to the positive battery terminal and terminal No. 4 to the • An operating sound of the fuel pump should be heard. Q: Is the fuel pump operating properly? YES : Go to Step 11. malfunction symptom is eliminated. STEP 11. Check the continuity at fuel pump harness side side. (2) Check for the continuity between terminal No. 4 and ground. • Should be less than 2 ohms. Q: Is the continuity normal? YES : Go to Step 12. connector D-17 (terminal No. 4) and ground because AK300446 1 2 3 4 5 D-17 (GR) AB CONNECTOR: D-17 HARNESS CONNECTOR: AKX01439 FUEL PUMP SIDE AB 1 2 3 4 5 AK300446 1 2 3 4 5 D-17 (GR) AB CONNECTOR: D-17 HARNESS CONNECTOR: AKX01440AC 1 2 3 4 5 D-17 HARNESS |