Engine Code

HONDA F20B5 engine (1997–2001) – Specs, Problems & Compatibility Database

The Honda F20B5 is a 1,997 cc, inline‑four petrol engine produced between 1997 and 2001. It features a single overhead camshaft (SOHC) with 16 valves and Honda's VTEC (Variable Valve Timing and Lift Electronic Control) system. This technology enables a switch between low-rpm efficiency and high-rpm power, delivering a peak output of 107 kW (145 PS) and 178 Nm of torque.

Fitted primarily to the sixth-generation Honda Accord (CD chassis) for the European market, the F20B5 was engineered for refined, comfortable performance with a sporty edge in mid-size sedans and estates. Emissions compliance for its production period was met through precise electronic fuel injection and a catalytic converter, allowing it to meet Euro 2 standards.

One documented engineering characteristic is the VTEC crossover point, which occurs at approximately 5,600 rpm. This transition, managed by the engine control unit, is highlighted in Honda Service Bulletin 97-041. The switch engages a high-lift cam profile, significantly altering the engine's power delivery and sound.

Honda Engine
Compliance Note:

Production years 1997–2001 meet applicable European emissions standards (Euro 2) for passenger vehicles of that era (Honda Internal Emissions Certification Docs).

F20B5 Technical Specifications

The Honda F20B5 is a 1,997 cc inline‑four naturally aspirated petrol engine engineered for mid-size sedans and estates (1997-2001). It combines SOHC 16-valve architecture with VTEC variable valve timing to deliver a broad powerband and efficient cruising. Designed to meet late-1990s emissions standards, it balances spirited performance with everyday economy.

ParameterValueSource
Displacement1,997 cc
Fuel typePetrol
ConfigurationInline‑4, SOHC, 16‑valve
AspirationNaturally aspirated
Bore × stroke85.0 mm × 88.0 mm
Power output107 kW (145 PS) @ 6,200 rpm
Torque178 Nm @ 5,000 rpm
Fuel systemPGM-FI (Programmed Fuel Injection)
Emissions standardEuro 2
Compression ratio9.8:1
Cooling systemWater‑cooled
TurbochargerNone
Timing systemBelt-driven
Oil type10W-40 (API SJ)
Dry weight138 kg
Practical Implications

The VTEC system provides a distinct surge in power above 5,600 rpm, ideal for overtaking but requires revving to access full performance. Strict adherence to 90,000 km timing belt replacement intervals is critical to prevent catastrophic failure. Regular oil changes (every 10,000 km) with the correct viscosity are critical to protect the VTEC solenoid and valvetrain. The PGM-FI system demands clean fuel filters to maintain optimal injector spray patterns.

Data Verification Notes

Oil Specs: Requires 10W-40 meeting API SJ specification (Honda Owner's Manual 1998 Accord).

Emissions: Certification applies to 1997-2001 models for European markets (Honda Internal Emissions Certification Docs).

Power Ratings: Measured under JIS D 1001 standards. Peak figures achieved with 95 RON fuel (Honda Group PT-2000).

Primary Sources

Honda Technical Information System (TIS): Workshop Manual 1998 Accord, SIB 97-041

Honda Electronic Parts Catalogue (EPC): Doc. H-F20B5-97

Honda Owner's Manual: 1998 Accord

F20B5 Compatible Models

The Honda F20B5 was used across Honda's CD platform with transverse mounting. This engine received minor ECU and accessory bracket variations between sedan and estate body styles, creating minor part number differences. All adaptations are documented in OEM technical bulletins.

Make:
Honda
Years:
1997–2001
Models:
Accord Sedan (CD)
Variants:
2.0i VTEC
View Source
Honda Group PT-2000
Make:
Honda
Years:
1997–2001
Models:
Accord Tourer (CD)
Variants:
2.0i VTEC
View Source
Honda Group PT-2000
Identification Guidance

Locate the engine code stamped on the front of the engine block, near the timing belt cover (Honda Workshop Manual 1998 Accord). The 8th digit of the VIN for European Accords is often 'F' for this engine family. Visually, it can be identified by its SOHC valve cover with "VTEC" embossed on it. Critical differentiation from the non-VTEC F20A: The F20B5 has an oil pressure switch and solenoid on the cylinder head for VTEC operation.

VTEC System

Evidence:

Honda SIB 97-041

Operation:

  • Engages at approximately 5,600 rpm under load, switching to a high-lift cam profile.
  • Requires adequate oil pressure and level for reliable engagement.
Ignition System

Type:

Distributorless Ignition System (DIS) with four individual coil packs mounted directly on the spark plugs.

Evidence:

Honda Workshop Manual 1998 Accord

Maintenance:

Coil packs are generally reliable but can fail individually; spark plug tube seals should be checked for oil leaks during plug changes.

Common Reliability Issues - HONDA F20B5

The F20B5 is renowned for its reliability, with the primary long-term concern being timing belt failure if replacement intervals are neglected. Honda service data indicates that failure to replace the belt at 90,000 km can lead to catastrophic engine damage due to its interference design. The VTEC solenoid and ignition coils are also common wear items after 150,000 km.

Timing belt failure
Symptoms: Engine suddenly stops running, will not crank or start, potential for severe internal damage (bent valves).
Cause: Age or mileage-related failure of the rubber timing belt, often due to exceeding the 90,000 km replacement interval.
Fix: Replace the timing belt, tensioner, and water pump as a preventative set per OEM procedure; inspect for valve damage if failure occurred.
VTEC system failure to engage
Symptoms: Lack of power surge at ~5,600 rpm, 'VTEC' warning on OBD, engine feels flat at high RPM.
Cause: Clogged oil screen/filter in VTEC solenoid, faulty oil pressure switch, or low oil pressure/volume.
Fix: Clean or replace VTEC solenoid and screen; replace oil pressure switch if faulty; ensure correct oil level and grade.
Ignition coil failure
Symptoms: Engine misfire on one cylinder, rough idle, 'Check Engine' light with misfire code (e.g., P0301).
Cause: Age-related failure of the individual coil pack, often exacerbated by heat or moisture ingress.
Fix: Replace the faulty individual coil pack with a new OEM unit; inspect spark plug and tube for oil contamination.
Coolant leaks from water pump
Symptoms: Coolant puddle under the front of the engine, coolant smell, potential for overheating.
Cause: Wear of the water pump's internal seal or bearing, leading to coolant leakage from the weep hole or shaft.
Fix: Replace the water pump assembly with a new OEM unit; inspect and replace the timing cover gasket if necessary.
Research Basis

Analysis derived from Honda technical bulletins (1997-2001) and aggregated workshop repair data. Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about HONDA F20B5

Find answers to most commonly asked questions about HONDA F20B5.

Research Resources

Comprehensive technical documentation and regulatory references

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Regulation (EC) No 715/2007

Euro emissions framework for vehicle type approval.

Commission Regulation (EU) 2017/1151

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Last Updated: 16 August 2025

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