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MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.0L> 13B-133 CIRCUIT OPERATION • A voltage corresponding to the oxygen • Terminal 2 of the right bank heated oxygen TECHNICAL DESCRIPTION • The output signal of the right bank heated oxygen • The PCM checks for an open circuit in the right DTC SET CONDITIONS Check Conditions • Right bank heated oxygen sensor (rear) signal • Engine coolant temperature is higher than 82 ° C (180 ° F). • Engine speed is higher than 1,200 r/min. • Volumetric efficiency is higher than 25 percent. • Monitoring time: 7 seconds. Judgment Criteria • Input voltage supplied to the PCM interface • Only one monitor during one drive cycle Check Conditions • Right bank heated oxygen sensor (rear) signal • Engine coolant temperature is higher than 82 ° C (180 ° F). • Engine speed is higher than 1,200 r/min. • Volumetric efficiency is higher than 25 percent. • Volume air flow sensor output frequency is 100 • At least twenty seconds have passed since fuel • The right bank heated oxygen sensor (front) • Monitoring time: 10 seconds Judgement Criteria • Making the air/fuel ratio 15 percent for 10 • Only one monitor during one drive cycle TROUBLESHOOTING HINTS (The most likely • Right bank heated oxygen sensor (rear) failed. • Open circuit in right bank heated oxygen sensor • Open circuit in right bank heated oxygen sensor • PCM failed. DIAGNOSIS Required Special Tools ACX02493AG CONNECTOR:B-31 RIGHT BANK AK000280 CONNECTORS : C-40, C-41 C-41 C-40 PCM AX |