|
|
MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.0L> 13B-469 STEP 2. Check the MFI relay 4. • There should be continuity (approximately 70 Ω ) (3) Use jumper wires to connect MFI relay terminal 4 to the positive battery terminal and terminal 2 to the negative (4) Check the continuity between the MFI relay terminals 1 and 3 while connecting and disconnecting the jumper wire at • Should be less than 2 ohm.(Negative battery terminal • Should be open loop.(Negative battery terminal (5) Install the MFI relay. Q: Is the voltage normal? YES : Go to Step 3. malfunction symptom is eliminated. STEP 3. Check the power supply voltage at MFI relay harness side. (2) Measure the voltage between terminal 3, 4 and ground. • Voltage should be battery positive voltage. Q: Is the voltage normal? YES : Go to Step 4. connector for damage, and repair or replace as ). If intermediate connector is in good condition, repair harness wire between fusible AK000555AB CONNECTOR : A-21X MFI RELAY AK000369AB MFI RELAY SIDE 1 2 AK000370AB MFI RELAY SIDE 1 2 AK000371AB 1 2 3 4 A-21X HARNESS |