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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE> 13A-337 STEP 5. Check the cylinder 2, 3 heated oxygen sensor (1) Disconnect the cylinder 2, 3 heated oxygen sensor (front) connector B-36 and connect test harness special tool (2) Warm up the engine until engine coolant temperature reaches 80 °C (176°F) or higher. (3) Perform a racing for 5 minutes or more with the engine speed of 4,500 r/min. (4) Connect a digital voltage meter between terminal No. 2 (black clip) and terminal No. 4 (white clip). (5) While repeatedly revving the engine, measure the cylinder 2, 3 heated oxygen sensor (front) output voltage. Standard value: 0.6 − 1.0 volt CAUTION • Be very careful when connecting the jumper wires; incorrect connection can damage the heated oxygen • Be careful the heater is broken when voltage of beyond 8 volts is applied to the heated oxygen sensor (front) ° C (752 ° F) or more] is not reached although the heated oxygen sensor (front) is normal, the output voltage would be Q: Is the measured voltage between 0.6 and 1.0 volt? YES : Go to Step 6. (front). Then go to Step 12. AK303830 1 2 3 4 AB CONNECTOR: B-36 B-36 (GR) CYLINDER 2, 3 HARNESS AKX01624 HEATED MB991316 WHITE BLACK AN |