The firing order is 1-3-4-2.
In the 1998 CR-V, powered by the 2.0-liter inline-four (B20B/B20Z family), the ignition sequence follows 1-3-4-2. This sequence tells you which cylinder fires in which order as the engine completes each four-stroke cycle. Using the correct order is essential for optimal idle, power, and fuel efficiency, and helps diagnose misfires or wiring issues.
How to identify and apply the sequence
Keep in mind that, on this engine, the cylinders are typically numbered from the front of the engine to the rear. The sequence 1-3-4-2 refers to those cylinder numbers, not the order of the physical pistons’ movement. When wiring or servicing ignition coils, spark plug wires, or coil packs, arrange connections to match 1-3-4-2.
- Cylinder 1 fires first
- Cylinder 3 fires second
- Cylinder 4 fires third
- Cylinder 2 fires last
Note: If your CR-V has a non-standard ignition layout due to aftermarket parts or a different market engine, consult the specific service manual or its wiring diagram to confirm the exact cylinder numbering and ignition sequence.
Cylinder identification on the B20B engine
On the B20B engine used in the 1998 CR-V, the front-most cylinder is cylinder 1 (nearest the timing belt/timing chain end), with numbers increasing toward the rear. This convention is common across Honda inline-four engines, but always verify with the vehicle's service manual if you’re unsure.
Why the firing order matters
Correct firing order ensures proper balancing of the firing impulses, smooth idle, and efficient combustion. An incorrect order can cause misfires, rough running, poor fuel economy, or damage to ignition coils, spark plugs, or the catalytic converter due to unburned fuel washing the catalyst.
Summary
The 1998 Honda CR-V uses a 1-3-4-2 firing order for its 2.0L inline-four. Cylinder numbering runs from the front of the engine to the rear; ensure ignition wiring or coil packs follow that sequence when installing plugs, replacing coils, or diagnosing misfires. Always refer to the factory service manual for your exact VIN and engine variant.