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Diagnostic Procedure 1. CHECK GROUND CONNECTIONS • Turn ignition switch off. • Loosen and retighten ground screws on the body (See Ground Inspection in Section 03 Electronic Engine Con- trols). • Inspect ground connections E-207 and E-208 mounting position (See Vehicle Wiring Harness Layout - Engine Room Harness (With 1.6L/1.8L Engine) in Section 16 Wiring). Is ground connections OK? Yes >> Go to the next step. No >> Repair or replace ground harness or connections. 2. CHECK INTAKE SYSTEM • Check the following for connection. − Air cleaner Is the check result normal? Yes >> Go to the next step. No >> Clean or replace the components. 3. CHECK MASS AIR FLOW (MAF) SENSOR ELECTRICAL CONNECTOR • Disconnect the MAF sensor (1) electrical connector. • Inspect the electrical connector for damage. Is the electrical connector OK? Yes >> Go to the next step. No >> Repair or replace the electrical connector as necessary. DIAGNOSIS & TESTING LTSMD030075 03
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