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Home >> Toyota >> 1994 >> MR2 2.2 S, Automatic >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Controls - Remove/Install/Overhaul >> Fuel System >> Fuel Injectors & Fuel Rails >> Installation (2.2L Non-Turbo)
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Installation (2.2L Non-Turbo)

  1. Install NEW grommet to each injector. Apply a light coat of gasoline to NEW "O" ring and install onto injector. Install injectors to fuel rail. Turn injector from left to right to bottom injector securely into rail.
  2. Install 4 NEW injector insulators and 2 rail mounting spacers into proper positions on cylinder head. Install fuel rail/injector assembly into position on cylinder head. Snug tighten 2 mounting bolts holding fuel rail to cylinder head.
  3. Verify injectors rotate smoothly side-to-side. Ensure each injector electrical connector is positioned upward, facing camshaft cover. If injectors DO NOT rotate smoothly, remove injector and replace damaged "O" rings. Tighten 2 fuel rail mounting bolts to 115 INCH lbs. (13 N.m).
  4. Connect fuel return hose to fuel rail. Connect fuel inlet pipe to fuel rail with 2 NEW gaskets and pulsation damper. Tighten pulsation damper to 25 ft. lbs. (34 N.m). Connect fuel return hose and vacuum hose to pressure regulator.
  5. Install wiring harness to intake manifold and position to mounting bolts on timing belt cover. Install air intake chamber support, and tighten bolts to 31 ft. lbs. (42 N.m). Connect Gray injector connectors to No. 2 and 4 injectors. Connect Brown injector connectors to No. 1 and 3 injectors.
  6. To complete installation, reverse removal procedure. Tighten all nuts and bolts to specification. See TORQUE SPECIFICATIONS TABLE at the end of this article. After installation is complete, check for fuel leaks. See CHECKING FOR FUEL LEAKS.
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