Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2005 Toyota MR2 C56FACTORY OEM SERVICE PROCEDURE
Engine Control System (SFI): Injector: Installation
- INSTALL INJECTORS AND DELIVERY PIPES
- Apply a light coat of spindle oil or gasoline onto a new O-ring, and install it to each injector.
- Install the 2 spacers and 4 new insulators to the cylinder head.
- Apply a light coat of spindle oil or gasoline on the place where a delivery pipe touches the O-ring.
- While turning the injector clockwise and counterclockwise, push it to the delivery pipes. Then install the 4 injectors.
- Position the injector connector upward.
- Attach the delivery pipe together with the 4 injectors to the cylinder head.
- Temporarily install the 2 bolts to hold the delivery pipe to the cylinder head.
- Check that the injectors rotate smoothly.
HINT:
If injectors do not rotate smoothly, the possible cause is incorrect installation of the O-ring. Replace the O-ring.
- Position the injector connector upward.
- Tighten the 2 bolts holding the delivery pipe to the cylinder head.
Torque: 19 N.m (190 kgf.cm, 13 ft.lbf)
- Connect the 4 injector connectors.
- CONNECT WIRE HARNESS CLAMPS
Connect the 3 wire harness clamps to the clamp brackets.
- CONNECT PCV HOSE
- INSTALL NO. 2 CYLINDER HEAD COVER
- INSTALL SUSPENSION UPPER BRACE
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
