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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE> 13A-25 . Test 1. Engine: start − 97 km/h (45 − 60 mph). 4. Decelerate until the vehicle speed is within 56 − 64 km/h (35 − 40 mph). 5. While keeping the accelerator pedal opening degree constant, keep the vehicle speed at 56 − 64 km/h (35 − 40 mph) and travel for 90 seconds or more. (During monitor) 6. Fully close the throttle and decelerate, and keep the deceleration state for 10 seconds. Then, quickly accelerate until the vehicle speed reaches 56 − 64 km/h (35 − 40 mph). Then, repeat steps 5 and 6, and complete six monitor sessions. 7. Return the vehicle to the shop, then turn the ignition switch to "LOCK" (OFF) position. − Warm Up Catalyst Efficiency Below Threshold (cylinder 1, 4) If DTC P0431 is output, refer to DTC P0431 − Warm Up Catalyst Efficiency Below Threshold (cylinder 2, 3) CATALYTIC CONVERTER MONITOR |