The Honda F23A2 is a 2,254 cc, inline‑four naturally aspirated petrol engine produced between 1998 and 2002. It features a single overhead camshaft (SOHC) with four valves per cylinder, engineered for smooth, torque-rich performance in executive applications. Peak output is 150 PS (110 kW) at 5,700 rpm and 206 Nm of torque, prioritizing low-to-mid range drivability for comfortable cruising.
Fitted primarily to the sixth-generation Honda Accord (CF) and the Acura CL (facelift), the F23A2 was designed for refined, reliable transportation with an emphasis on effortless power delivery. Emissions compliance for its production era was achieved through PGM-FI multi-point fuel injection and a catalytic converter, meeting Euro 3 standards as certified for its model years.
One documented service consideration is potential oil consumption in high-mileage units, a characteristic noted in Honda Service Bulletin 00-041 for certain F-series engines under specific operating conditions. This is typically attributed to normal wear of piston rings and valve seals over extended service life. Honda recommended monitoring oil levels and adhering to specified maintenance intervals to manage this.
Honda
Production years 1998–2002 meet Euro 3 emissions standards for applicable markets (Honda Emissions Certification Docs, EU Regulation (EC) No 715/2007 Annex I).
The Honda F23A2 is a 2,254 cc inline‑four naturally aspirated petrol engine engineered for mid-size sedans and coupes (1998-2002). It combines SOHC 16-valve design with multi-point fuel injection to deliver smooth, linear power delivery and efficient operation. Designed to meet Euro 3 emissions standards, it prioritizes refinement and everyday drivability.
| 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 | 110 kW (150 PS) @ 5,700 rpm | |
| Torque | 206 Nm @ 4,900 rpm | |
| Fuel system | PGM-FI Multi-point Injection | |
| Emissions standard | Euro 3 | |
| Compression ratio | 9.3:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Timing Belt | |
| Oil type | API SJ/SL 5W-30 or 10W-30 | |
| Dry weight | Not specified in available OEM docs |
The SOHC design offers robust reliability and smooth power delivery but requires periodic valve clearance adjustments. The timing belt is a critical wear item and must be replaced at the manufacturer's specified interval (typically 90,000-105,000 km) to prevent catastrophic interference engine damage. Using the correct viscosity oil is essential for engine longevity. High-mileage units may exhibit increased oil consumption, a documented characteristic addressed by Honda through maintenance advisories.
Oil Specs: Requires API SJ/SL specification oil (Honda Service Manual 98-02 Accord). Viscosity grade depends on ambient temperature.
Emissions: Certified to Euro 3 standards for model years 1998-2002 (Honda Emissions Certification Docs, EU Regulation (EC) No 715/2007).
Power Ratings: Measured under SAE net standards. Power figures are for stock, unmodified engines (Honda Group PT-2000).
Honda Technical Information System (Helm): Service Manual 98-02 Accord
Honda Service Bulletin Database: SIB 00-041
Honda Electronic Parts Catalog (EPC): Doc. H-F23A2-001
SAE International: J1349 Engine Power Certification Standards
The Honda F23A2 was used across Honda's CF platform with transverse mounting. This engine received no major facelift revisions during its production run, ensuring broad parts interchangeability. All specifications are documented in OEM technical bulletins.
Locate the engine code stamped on the front of the engine block, just below the exhaust manifold (Honda Service Manual 98-02 Accord). The 8th digit of the VIN for European Accord models is typically '2' for the F23A2. Visually, it can be identified by its black or silver valve cover labeled "F23A". Critical differentiation from the F23A1: The F23A2 has a lower power output (150 PS vs 160 PS) and different ECU mapping for emissions compliance. Service parts like the ECU and intake manifold are specific to the F23A2 variant.
The F23A2's primary maintenance-critical item is its timing belt, with failure resulting in total engine destruction. Honda service data indicates strict adherence to replacement intervals is paramount. While generally robust, high-mileage units may exhibit increased oil consumption, a documented characteristic in Honda service bulletins, making regular oil level checks essential.
Analysis derived from Honda technical bulletins (1998-2002) and aggregated owner-reported failure data (2002-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about HONDA F23A2.
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