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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE> 13A-147 STEP 1. Check connector B-23 at the heated oxygen YES : Go to Step 2. Connector Inspection ( STEP 2. Check the heated oxygen sensor (rear). and connect test harness special tool, MB991658, to the (2) Measure the resistance between heated oxygen sensor connector terminal 5 and terminal 6. Standard value: 11 − 18 ohm [at 20 ° C (68 ° F)] Q: Is the resistance normal? YES : Go to Step 3. Step 12. STEP 3. Check the power supply voltage at heated oxygen side. (2) Turn the ignition switch to the "ON" position. • Voltage should be battery positive voltage. (4) Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the voltage normal? YES : Go to Step 5. AK000733AB CONNECTOR:C-23 ACX02495 HEATED OXYGEN AE CONNECTOR:C-23 AK000121AB HEATED OXYGEN SENSOR MB991658 AK000322 1 2 3 4 5 6 C-23 HARNESS AD |