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FL -466 FUEL SYSTEM SPECIFICATION : TERMINAL RESISTANCE TABLE Resistance ( K Ω 20 ℃ ) Detecting terminal valve fully opend valve fully closed Characteristic Component connector shape 3(power)- 5(ground) 4.47±0.1K Ω 4.47±0.1K Ω stable 3(power)- 4(signal) 4.81±0.1K Ω 0.85±0.1K Ω resistance drops variable swirl control actuator position sensor 4(signal)- 5(ground) 0.75±0.1K Ω 4.71±0.1K Ω resistance rises 5 4 3 2 1 LFIG515A 4) Is the measured resistance within the specification? YES ▶ Go to "4. Check motor operation" as follows. NO ▶ Replace variable swirl control actuator assy’ and go to "Verification of Vehicle Repair". 4. Check motor operation 1) IG KEY "ON" , ENGINE "ON". 2) Keep engine at idle state. 3) Monitor the waveform of variable swirl control actuator terminal 1and 2 with two channel oscilloscope. 4) Accelerating engine to above 3000RPM, let variable swirl control actuator be opened(operates). Specification : Refer to Signal Waveform & Data "Fig.1)", " Fig.2)". 5) Does variable swirl control actuator operate correctly? YES ▶ Go to "5. Check variable swirl control actuator position sensor operation". NO ▶ Replace variable swirl control actuator assy’ and go to "Verification of Vehicle Repair". 5. Check variable swirl control actuator position sensor operation 1) IG KEY "ON", ENGINE "ON". 2) Keep engine at idle state. 3) Monitor the waveform of variable swirl control actuator terminal 4 with oscilloscope. 4) Turning off engine, monitor the waveform of variable swirl control actuator at the point of operation stop. Specification : Refer to Signal Waveform & Data "Fig.3)" |