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6) Unstable idle speed at all time Yes Fix the indicated malfunction 1 Turn the ignition switch to “ON” No Proceed to next step. Yes Repair or replace idle speed actuator 2 Verify that the EWD3 idle speed actuator No Proceed to next step. Yes Inspect the wiring harness and plug in connector 3 Connect the ignition switch and verify No Proceed to next step. Yes Proceed to Step 8 4 Run the engine at idle speed and cut off No Proceed to next step. Yes Proceed to next step. 5 Verify that the fuel injector of each No Inspect the fuel injector and the wiring harness Yes Proceed to next step. 6 Verify that the resistance of each cylinder No Replace Yes Replace 7 Verify that the ignition coil is damaged. No Proceed to next step. Yes Proceed to next step. 8 Verify that the spark plug is normal. No Replace the spark plug Yes Proceed to next step. 9 Connect the fuel manometer valve. Short No Proceed to Step 13. Yes Proceed to Step 12. 10 Provide a voltage supply of 12V with No Proceed to next step. Yes Proceed to next step. 11 After washing and cleaning the fuel No Replace the fuel injector Yes Replace the fuel 12 Verify that the fuel is deteriorated or No Proceed to Step 18 Yes Proceed to next step. 13 Verify that the fuel pressure is lower than No Proceed to Step 17. 14 Close the fuel manometer valve. Connect Yes Proceed to next step. |