The ignition firing order for the 2000 Lexus RX 300, which uses a 3.0-liter V6 (1MZ-FE), is 1-2-3-4-5-6.
Engine overview and cylinder numbering
The RX 300 from the early 2000s is powered by Toyota’s 3.0L V6 engine, the 1MZ-FE. This is a 60-degree V6 with coil-on-plug ignition and sequential firing. On most Toyota V6 layouts, cylinder numbering is split between two banks: bank 1 on the left when facing the front of the engine includes cylinders 1, 3, and 5, while bank 2 on the right includes cylinders 2, 4, and 6. The front-most cylinder on the left bank is #1, and the front-most cylinder on the right bank is #2.
Firing order specifics
To help with timing, diagnostics, and ignition service, the official firing sequence for the 1MZ-FE engine in the 2000 RX 300 follows an alternating-bank pattern from front to rear. The order is listed below for clarity.
- Cylinder 1 — left bank, front
- Cylinder 2 — right bank, front
- Cylinder 3 — left bank, middle
- Cylinder 4 — right bank, middle
- Cylinder 5 — left bank, rear
- Cylinder 6 — right bank, rear
Concluding: This firing order is the standard ignition sequence used by the 1MZ-FE engine in the 2000 RX 300. When performing timing work, coil testing, or ignition-related maintenance, follow this sequence as your reference.
Summary
The 2000 Lexus RX 300’s 3.0L V6 (1MZ-FE) uses a firing order of 1-2-3-4-5-6, with cylinder numbering dividing into left bank (1, 3, 5) and right bank (2, 4, 6). The sequence alternates between banks from front to rear, providing balanced ignition and smoother operation.