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FL -470 FUEL SYSTEM ▶ Go to "Component Inspection". NO ▶ Repair short to ground in signal circuit and go to "Verification of Vehicle Repair". COMPONENT INSPECTION E2DFC158 1. Check variable swirl control actuator position sensor resistance 1) IG KEY "OFF", ENGINE "OFF" 2) Disconnect variable swirl control actuator. 3) Measure the resistance of variable swirl control actuator component terminal 3,4,5 referring "Terminal resistance 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 "2. Check variable swirl control actuator position sensor operation" as follows. NO ▶ Replace variable swirl control actuator assy’ and go to "Verification of Vehicle Repair". 2. 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)" 5) Does variable swirl control actuator and position sensor operations are OK? YES ▶ Go to "Verification of Vehicle Repair". |