|
|
FL -146 FUEL SYSTEM 2. Disconnect MAFS connector. 3. IG KEY "ON". 4. Measure the voltage of MAFS connector terminal 4. [ TEST "A" ] 5. Measure the voltage between MAFS connector terminal 4 and 2. [ TEST "B" ] Specification : [TEST "A"] Voltage - [TEST "B"] Voltage = below 200mV 6. Is the measured voltage within the specification? YES ▶ Go to "Component Inspection". NO ▶ When "B" voltage is not detected : Repair open in ground circuit and go to "Verification of Vehicle Repair". ▶ When the voltage difference between "A" and "B" is above 200mV : Eliminate the causes of excessive resistance and go to "Verification of Vehicle Repair". COMPONENT INSPECTION E15837EE 1. IG KEY "OFF", ENGINE "OFF". 2. Check that MAFS is installed in correctly according to the direction of arrow on MAFS assy’. 3. Check contamination of air cleaner filter. 4. IG KEY "ON", ENGINE "ON". 5. Let IDLE RPM last after warming engine up. 6. Check the leakage of intake system(the leakage or damage of intercooler). 7. Check that VGT operates correctly.( Check if vacuum operating state of VGT actuator is appropriate, if VGT diaphragm 8. Check that EEGR actuator does not operate. 9. Monitor signal voltage of MAFS when engine speed lasts at approx. 750RPM using Scantool. 10. Check MAFS output signal at idle after rapid acceleration.(EEGR actuator duty 45%) Specification : When EEGR actuator does not operate (6%) at idle : 450mg/st ± 50 mg/st 11. Is output signal within the specification? YES ▶ Go to "Verification of Vehicle Repair". NO |