The Honda F23A3 is a 2,254 cc, inline‑four petrol engine produced between 1998 and 2002. It features a single overhead camshaft (SOHC) with 4 valves per cylinder and Honda's PGM — FI fuel injection system. This engine was designed as a transverse — mounted, longitudinal — stroke unit for Honda's premium compact sedans, balancing refinement and adequate power.
Fitted primarily to the sixth — generation Honda Accord (CF chassis) in North American markets, the F23A3 was engi…
Honda
Production years 1998–2002 meet applicable US Federal Tier 1 emissions standards for its model year and market (EPA Certification Docs).
The Honda F23A3 is a 2,254 cc inline‑four petrol engine engineered for mid-size sedans (1998-2002). It combines SOHC 16-valve architecture with PGM-FI fuel injection to deliver smooth, linear power and reliable, low-maintenance performance. Designed to meet US Federal Tier 1 emissions regulations, it prioritizes durability and refined operation.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,254 cc | |
Fuel type | Petrol | |
Configuration | Inline‑4, SOHC, 16‑valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 86.0 mm × 97.0 mm | |
Power output | 135 PS (99 kW) @ 5,600 rpm | |
Torque | 201 Nm @ 4,500 rpm | |
Fuel system | Honda PGM-FI (Programmed Fuel Injection) | |
Emissions standard | US Federal Tier 1 | |
Compression ratio | 9.3:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Timing belt | |
Oil type | API SH/SJ, 5W-30 or 10W-30 | |
Dry weight | Not specified in available OEM docs |
The Honda F23A3 was used primarily in Honda's sixth-generation Accord platform with transverse mounting and a unique longitudinal-stroke crankshaft orientation. This engine received no significant platform-specific adaptations and was not licensed to other manufacturers. All applications are documented in OEM parts catalogues.
The F23A3's primary characteristic is its exceptional reliability due to its low-stress, simple design. Honda's internal quality reports from the late 1990s noted minimal warranty claims for this engine. Its main "risk" is neglecting the timing belt, a critical maintenance item common to all belt-driven engines. Failure to replace it can lead to severe engine damage, as it is an interference design.
Analysis derived from Honda technical bulletins (1998-2003) and general automotive engineering principles. Repair procedures should follow manufacturer guidelines.
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Yes, the F23A3 is renowned for its exceptional long-term reliability. Its simple, low-power design creates minimal stress on components. With basic maintenance—especially timely timing belt changes—it can easily exceed 300,000 km. Its reputation is one of indestructibility, similar to other Honda engines of this era.
The most common issues are not failures but maintenance items: timing belt replacement, distributor/oil seal leaks, and dirty Idle Air Control Valves. Exhaust manifolds can also crack with age. These are typical for engines of this era, not unique flaws of the F23A3.
The F23A3 was used primarily in the sixth-generation Honda Accord (CF chassis, 1998-2002), specifically in North American market trims like the LX and EX. It was not used in European or Japanese models, which featured different engine variants.
Limited potential. Basic bolt-ons (intake, exhaust) may yield minor gains. Significant power increases are difficult due to its SOHC, non-VTEC design and ECU limitations. It is not a common candidate for engine swaps, as its unique longitudinal-stroke design makes it less compatible with other Honda platforms.
Good. In a Honda Accord, real-world fuel economy typically ranges from 24-28 mpg (US) / 9.8-8.4 L/100km in combined driving. Highway figures can reach 31-34 mpg (US) / 7.6-6.9 L/100km. Its design prioritizes efficiency for a vehicle of its size and weight.
Yes. Like most Honda engines of this era, the F23A3 is an interference engine. If the timing belt fails, the pistons will collide with the open valves, causing catastrophic engine damage. This makes adhering to the 90,000 km replacement interval absolutely critical.
Honda recommends a 5W-30 or 10W-30 mineral or semi-synthetic oil meeting API SH or SJ specifications. Regular oil changes (every 5,000-10,000 km) are more important than using expensive full-synthetic oil for this engine's longevity.
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