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FLA -594 FUEL SYSTEM DTC DETECTING CONDITION EE78EB92 Item Detecting Condition Possible Cause DTC Strategy • The engine airflow measurements not based on throttle position are compared with throttle Enable Conditions • Engine running Case 1 • Speed-Density Airflow - ETC estimated airflow 〉 9 g/s Thresh- old Case 2 • MAF reading - ETC estimated airflow 〉 7g/s Diagnosis Time • Contineous (More than 3.9sec. Failure for every 15.6sec. Test) MIL On Condition • 1 Driving Cycle • Air Leakage between TPS and MAFS • Faulty throttle body SPECIFICATION E6F349EF MAFS Air flow (kg/h) Frequency (Hz) 0 kg/h 720 ~ 880 Hz 12.6 kg/h 2,595 Hz 18.0 kg/h 2,930 Hz 23.4 kg/h 3,208 Hz 32.4 kg/h 3,609 Hz 43.2 kg/h 3,975 Hz 57.6 kg/h 4,361 Hz 72.0 kg/h 4,683 Hz 108.0 kg/h 5,362 Hz 144.0 kg/h 5,885 Hz 198.0 kg/h 6,527 Hz 270.0 kg/h 7,219 Hz 360.0 kg/h 7,945 Hz 486.0 kg/h 8,736 Hz 666.0 kg/h 9,660 Hz 900.0 kg/h 10,613 Hz TPS Output voltage(V) [Vref=5.0V] Throttle opening ( ) TPS1 TPS2 0 0.0V 5.0V 10 0.5V 4.5V |