The firing order is the order in which spark is sent to each cylinder. The spark must arrive at the correct time in the combustion cycle or damage may result. For this reason, connecting the correct plug to the correct distributor or coil terminal is critical. To avoid confusion, always replace the spark plug wires one at a time.
Fig. 1FZ-FE engine Firing order: 153624Distributor rotation: counterclockwise
Fig. 5VZ-FE engine Firing order: 123456Distributorless ignition system
Fig. 2RZ-FE and 3RZ-FE engines Firing order: 1342Distributor rotation: clockwise
Fig. 2RZ-FE and 3RZ-FE engines Firing orders: 1342Distributorless ignition system
Fig. 2UZ-FE engines Firing order: 18436572Distributorless ignition system