LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mazda >> 2021 >> 3 Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Fuel System (VIN Y)) >> Fuel Injector Removal/Installation >> Fuel Injector Installation Note
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Fuel Injector Installation Note

WARNING: This page is about a different variant/trim than selected.
CAUTION:
  • If engine oil is applied to the fuel injector, it could adhere to the injection holes and inhibit the fuel injector function. To prevent this, apply engine oil to the cylinder head side.
  1. Apply engine oil to the fuel injector installation holes.
  2. Insert the fuel injectors to the installation holes one by one, being careful of the direction the fuel injectors are pointed.
G11450823Courtesy of MAZDA MOTORS CORP.