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Home >> Mazda >> 2021 >> 3 Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 18 (Fuel System (VIN M)) >> Fuel Injector Removal/Installation >> Back-up Ring Installation Note
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Back-up Ring Installation Note

WARNING: This page is about a different variant/trim than selected.
  1. Install the back-up ring, making sure it is installed in the right direction.
    G11436338Courtesy of MAZDA MOTORS CORP.
  2. After installing the back-up ring, verify that it is installed correctly.
G11436339Courtesy of MAZDA MOTORS CORP.