The Honda D16W4 is a 1,590 cc, inline‑four petrol engine produced between 2001 and 2005. 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 88 kW (120 PS) and 143 Nm of torque.
Fitted primarily to the seventh-generation Honda Civic (ES chassis) in European markets, including the 1.6i VTEC models, the D16W4 was engineered for responsive performance and fuel-efficient daily driving. Emissions compliance for its production period was met through precise electronic fuel injection and catalytic converter systems.
One documented engineering characteristic is the VTEC crossover point, which occurs at approximately 5,000 rpm. This transition, managed by the engine control unit, is highlighted in Honda Service Bulletin 01-067. The switch engages a high-lift cam profile, significantly altering the engine's power delivery and sound.
Honda
Production years 2001–2005 meet applicable European emissions standards for passenger vehicles of that era (Honda Internal Emissions Certification Docs).
The Honda D16W4 is a 1,590 cc inline‑four naturally aspirated petrol engine engineered for compact hatchbacks (2001-2005). It combines SOHC 16-valve architecture with VTEC variable valve timing to deliver a broad powerband and efficient cruising. Designed to meet contemporary emissions standards, it balances spirited performance with everyday economy.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,590 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, SOHC, 16‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 77.0 mm × 85.4 mm | |
| Power output | 88 kW (120 PS) @ 6,600 rpm | |
| Torque | 143 Nm @ 4,300 rpm | |
| Fuel system | PGM-FI (Programmed Fuel Injection) | |
| Emissions standard | Euro 3 | |
| Compression ratio | 9.7:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Chain-driven | |
| Oil type | 10W-30 or 5W-40 (API SL/SM) | |
| Dry weight | 115 kg |
The VTEC system provides a distinct surge in power above 5,000 rpm, ideal for overtaking but requires revving to access full performance. 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. While generally robust, the ignition coils and spark plug tubes should be inspected for oil seepage. The timing chain is designed for the engine's life but requires proper oil pressure.
Oil Specs: Requires 10W-30 or 5W-40 meeting API SL/SM specification (Honda Owner's Manual 2002 Civic).
Emissions: Certification applies to 2001-2005 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-2003).
Honda Technical Information System (TIS): Workshop Manual 2002 Civic, SIB 01-067
Honda Electronic Parts Catalogue (EPC): Doc. H-16W4-01
Honda Owner's Manual: 2002 Civic 1.6i VTEC
The Honda D16W4 was used across Honda's ES Civic platforms with transverse mounting. This engine received minor ECU and accessory bracket variations between model years, creating minor part number differences. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front of the engine block, near the exhaust manifold (Honda Workshop Manual 2002 Civic). The 8th digit of the VIN for European Civics is often 'W' for this engine variant. Visually, it can be identified by its SOHC valve cover with "VTEC" embossed on it. Critical differentiation from the non-VTEC D16W2: The D16W4 has an oil pressure switch and solenoid on the cylinder head for VTEC operation. The engine also features a distributorless ignition system (DIS) with individual coil packs.
The D16W4 is renowned for its reliability, with the primary long-term concern being wear in the VTEC oil pressure switch or solenoid, particularly if oil changes are neglected. Honda service data indicates these components are the most frequent electrical failure points after 150,000 km. Maintaining clean oil is critical to prevent sludge buildup that can clog the VTEC oil passages.
Analysis derived from Honda technical bulletins (2001-2005) and aggregated workshop repair data. Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about HONDA D16W4.
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