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Home >> Toyota >> 1994 >> Tercel Base >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Controls - Remove/Install/Overhaul >> Fuel System >> Fuel Injectors & Fuel Rails >> Installation
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Fuel Injectors & Fuel Rails: Installation

  1. Apply light coat of gasoline to NEW "O" rings, and install "O" rings and NEW grommets onto injectors. Install injectors into fuel rail as follows. Starting at pressure regulator end of fuel rail, install injector Dark Blue connector, injector Brown connector, injector Dark Blue connector and injector Brown connector.
  2. When installing injectors into fuel rail, turn each injector from left to right while pushing downward to fully seat injector into fuel rail. Install 4 NEW insulators and 2 NEW spacers to cylinder head.
  3. Install fuel rail (with 4 injectors attached) to cylinder head. Verify injectors rotate smoothly. If injectors do not rotate smoothly, check "O" rings for proper installation. Position injector connectors upward on camshaft cover side. Install 2 fuel rail bolts and tighten to 14 ft. lbs. (19 N.m).
  4. Connect injector Gray wiring harness connectors (2) to Dark Blue injectors. Connect Brown wiring harness connectors (2) to Brown injectors. Connect fuel inlet pipe using NEW washer gaskets, and tighten union bolt to 22 ft. lbs. (30 N.m). Connect fuel return pipe to pressure regulator and tighten to 14 ft. lbs. (19 N.m).
  5. To complete installation, reverse removal procedure. Tighten all nuts and bolts to specification. See TORQUE SPECIFICATIONS TABLE at the end of this article. Check for fuel leakage. See CHECKING FOR FUEL LEAKS.
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