Toyota 3.5 V6 (2GR-FE) firing order and cylinder numbers
The Toyota 2GR-FE 3.5 V6 fires 1-2-3-4-5-6. Cylinder 1 is the cylinder at the passenger-side end of the rear bank, against the firewall (bank 1).
Drag to turn the engine, scroll or pinch to zoom. Orange = the cylinder firing now; the numbers on the coils are cylinder numbers. Driver and passenger sides are for left-hand-drive vehicles.
Firing order diagram
Where each cylinder is
| Cylinder | Misfire code | Location | Place in firing order |
|---|---|---|---|
| 1 | P0301 | The cylinder at the passenger-side end of the rear bank, against the firewall (bank 1) | 1st |
| 2 | P0302 | The cylinder at the passenger-side end of the front bank, nearest the radiator (bank 2) | 2nd |
| 3 | P0303 | The middle cylinder of the rear bank, against the firewall (bank 1) | 3rd |
| 4 | P0304 | The middle cylinder of the front bank, nearest the radiator (bank 2) | 4th |
| 5 | P0305 | The cylinder at the driver-side end of the rear bank, against the firewall (bank 1) | 5th |
| 6 | P0306 | The cylinder at the driver-side end of the front bank, nearest the radiator (bank 2) | 6th |
Bank 1 is always the bank that contains cylinder 1, so for this engine bank 1 is the bank 1 with cylinders 1-3-5; bank 2 is the bank 2 with cylinders 2-4-6. Oxygen-sensor, camshaft and catalyst codes that name bank 1 or bank 2 use the same split.
Coils, plugs and wires
- Six ignition coil assemblies, No. 1 to No. 6, one on each cylinder. The coil number matches the cylinder number, so P0303 points at the No. 3 coil and plug on the rear bank.
How to find a cylinder on this engine
- Find the front of the engine: the end with the drive belt and pulleys.
- Find bank 1, the bank 1 that holds cylinder 1. On this engine it is the rear bank.
- Count from the belt end. Cylinders 1-3-5 run along bank 1 and 2-4-6 along bank 2, each starting at the belt end.
- Match the code: P0301 is cylinder 1, P0302 cylinder 2, and so on. P0300 means a random or multiple misfire and does not name a cylinder.
Which engines this covers
Toyota's 2GR-FE 3.5 V6 in transverse front-drive and all-wheel-drive models.
- Camry V6 and Avalon (2010 verified)
- Highlander and RAV4 V6 (2010 verified)
- Sienna 3.5 (2010 verified)
Questions
What is the Toyota 3.5 V6 2GR-FE (Camry, Highlander, Sienna) firing order?
1-2-3-4-5-6.
Which side is cylinder 1 on?
Cylinder 1 is the cylinder at the passenger-side end of the rear bank, against the firewall (bank 1).
Where is cylinder 4 (code P0304)?
Cylinder 4 is the middle cylinder of the front bank, nearest the radiator (bank 2).
Which bank is bank 1?
The bank with cylinder 1: the bank 1, cylinders 1-3-5.
Why is the Toyota firing order simply 1-2-3-4-5-6?
Toyota numbers the cylinders in the order their crank throws come along the engine, alternating banks: 1 on bank 1, 2 on bank 2, 3 on bank 1 and so on. With that numbering the engine fires in plain numerical order.
Sources
The firing order, the cylinder numbering and the position of each bank in the vehicle were each checked against at least two of these sources, and they agree.
- Toyota Technical Service Bulletin EG034-07, Engine Bank 1 and Bank 2 A/F and O2 Identification (June 28, 2007). “Bank 1 (B1) refers to the bank that includes cylinder No. 1. Engine Bank Identification: 2GR-FE, 1MZ-FE, 3MZ-FE: No. 1, No. 3, No. 5 Cylinder on Bank 1; No. 2, No. 4, No. 6 on Bank 2; Front of Vehicle on the bank 2 side.” Factory / manufacturer
- Toyota repair information, 2010 Highlander 3.5L (2GR-FE), Firing Order (via Operation CHARM). “Firing Order 1-2-3-4-5-6, with Figure 2 Engine Bank Identification: bank 1 (1-3-5) at the rear, bank 2 (2-4-6) toward the front of the vehicle, No. 1 at the passenger end.” Factory / manufacturer
- Toyota wiring diagrams, 2010 Highlander 3.5L (2GR-FE), connector list (via Operation CHARM). “B30 (Ignition Coil Assembly No.1) ... B35 (Ignition Coil Assembly No.6).” Factory / manufacturer
- Engine-build.com, Toyota / Lexus GR V6 (1GR, 2GR) firing order. “Firing order: 1-2-3-4-5-6. Odd cylinders 1-3-5 on bank 1 (the right bank, which is the rear bank in front-drive cars), even 2-4-6 on bank 2.” Independent reference
Last reviewed 15 November 2026 · How the data is sourced and checked