MX-5 Miata Mazdaspeed L4-1.8L DOHC Turbo (2004)
Air Filter Element: Testing and Inspection
AIR CLEANER (ACL) ELEMENT INSPECTION
1. Remove the ACL element. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION.)
2. Verify that the ACL element surface is free of dirt.
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If there is dirt present, use an air gun or similar tool to clean the element.
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If the replacement time limit has passed, replace the element.