The 3RZ-FE, 5VZ-FE and 2UZ-FE engines do NOT use a conventional distributor. The 3RZ-FE engine uses two dual-terminal coils to fire the four spark plugs. The 5VZ-FE and 2UZ-FE engines use individual coils mounted on the spark plug boots. The 1FZ-FE and 2RZ-FE engines, on the other hand, do use a distributor. The 1FZ-FE engine uses a remote-mounted coil with a long secondary cable to the distributor cap. The 2RZ-FE engine uses a solid-state coil that mounts on the distributor body. None of these engines have a provision for spark advance (timing) adjustment. The Electronic Control Unit (ECU) handles all ignition timing computations and adjustments.
REMOVAL & INSTALLATION
- Disconnect the negative battery cable.
- Remove the distributor cap rubber boot if equipped.
- Loosen the screws securing the cap on the distributor.
- Usually it is helpful to tag the wires leading to the cap for easy identification on installation.
- Lift the cap off the distributor. Pulling from the wire boot, remove the plug wires from the cap.
- Once the cap and wires are off, lift the rotor off the shaft.
- Install the rotor onto the distributor shaft. The rotor only goes on one way so there should be no mix-up in replacement.
- Apply a small amount of dielectric grease on the tip of the rotor and the inside of the cap carbon ends.
- Attach the tagged wires to their proper locations on the cap.
- Fit the cap onto the distributor, and then tighten the bolts.
- Make sure all the wires are secure on the cap and spark plugs. Install the negative battery cable.
- Start the vehicle and check for any misses.
When inspecting a cap and rotor, look for signs of cracks, burns and wear. The inside of the cap may be burnt or show wear on the carbon ends. On the rotor look at the tip for burning and excessive wear.