For the 2007 Accord, there are two engines with different firing orders. The four-cylinder model uses 1-3-4-2, while the 3.0-liter V6 uses 1-2-3-4-5-6.
Two engines, two sequences
The Accord lineup for 2007 included a 2.4-liter inline-4 and a 3.0-liter V6. Each engine has its own ignition sequence that technicians observe when replacing plugs or ignition components.
Below are the two engine configurations and their firing orders.
- Four-cylinder 2.4L inline-4: firing order 1-3-4-2. Cylinder numbering is standard for Honda inline engines (front of the engine is cylinder 1).
- V6 3.0L: firing order 1-2-3-4-5-6. Cylinder numbering on Honda V6 typically assigns 1-3-5 on one bank and 2-4-6 on the other; the firing order is consecutive across the pairings.
Accurate wiring is essential to prevent misfires and rough running. When servicing ignition components, always verify the engine code (K-series four-cylinder vs J-series V6) and consult the owner's or service manual for precise timing information.
Four-cylinder specifics
The 2.4L engine (common in base trims) uses a firing order of 1-3-4-2. This sequence aligns with Honda's DOHC spark timing and camshaft phasing for the 4-cylinder platform.
V6 specifics
The 3.0L V6 uses the firing order 1-2-3-4-5-6. This order is typical for Honda's V6 family, though some VIN-coded variants may vary slightly; always confirm with your service manual if you are working on a specific vehicle build.
Summary
In short, the 2007 Honda Accord's firing orders depend on the engine. Use 1-3-4-2 for the four-cylinder model and 1-2-3-4-5-6 for the 3.0L V6. Always double-check the exact engine code and consult the official manual when performing ignition work to ensure correct timing.