Engine Code

HONDA D14A3 engine (1992–1995) – Specs, Problems & Compatibility Database

The Honda D14A3 is a 1,396 cc, inline‑four naturally aspirated petrol engine produced between 1992 and 1995. It features a single overhead camshaft (SOHC) with 16 valves and Honda's PGM-FI electronic fuel injection system. This design prioritized fuel efficiency and low-end torque for compact city driving, producing 63 kW (86 PS) and 123 Nm of torque.

Fitted primarily to the fifth-generation Honda Civic (EG/EH series) and CRX del Sol, the D14A3 was engineered for economical, reliable urban commuting and light highway use. Emissions compliance for its production period was met through precise fuel metering and a catalytic converter, allowing it to meet applicable Japanese and North American standards of the early 1990s.

One documented service concern is premature failure of the distributor ignition coil, which can lead to engine misfires and stalling. This issue, highlighted in Honda Service Bulletin 93-055, is attributed to heat degradation of the coil's internal insulation under sustained hood temperatures. Revised coil assemblies with improved thermal resistance were introduced in 1994.

Honda Engine
Compliance Note:

Production years 1992–1995 meet applicable Japanese 1991 Emissions Standards and US EPA Tier 0 regulations for its model year (Honda Emissions Certification Docs).

D14A3 Technical Specifications

The Honda D14A3 is a 1,396 cc inline‑four naturally aspirated petrol engine engineered for compact hatchbacks and coupes (1992-1995). It combines PGM-FI electronic fuel injection with a 16-valve SOHC layout to deliver frugal, responsive low-RPM performance and dependable daily commuting. Designed to meet early-1990s emissions standards, it balances economy with mechanical simplicity.

ParameterValueSource
Displacement1,396 cc
Fuel typePetrol
ConfigurationInline‑4, SOHC, 16‑valve
AspirationNaturally Aspirated
Bore × stroke75.0 mm × 79.0 mm
Power output63 kW (86 PS) @ 5,600 rpm
Torque123 Nm @ 4,800 rpm
Fuel systemHonda PGM-FI (Programmed Fuel Injection)
Emissions standardJapanese 1991 Standards / US EPA Tier 0
Compression ratio9.3:1
Cooling systemWater‑cooled
TurbochargerNone
Timing systemBelt-driven
Oil typeAPI SF/SG, SAE 10W-30
Dry weight112 kg
Practical Implications

The SOHC 16-valve design offers good low-RPM torque for city driving but lacks high-RPM performance. Strict adherence to 100,000 km timing belt replacement intervals is critical, as it is an interference design. Using the specified API SF/SG grade oil is essential for protecting the valvetrain. The distributor ignition coil is susceptible to heat-related failure; symptoms like misfires should prompt immediate inspection per Honda SIB 93-055. Pre-1994 models benefit from the updated coil assembly.

Data Verification Notes

Oil Specs: Requires API SF/SG specification (Honda Owner's Manual 1993). Modern equivalents (e.g., API SN) are backward compatible but SF/SG was the contemporary standard.

Emissions: Certification applies to 1992-1995 model years for respective markets (Honda Emissions Certification Docs).

Power Ratings: Measured under SAE net standards. Output is consistent across markets for this variant (Honda Group PT-1993).

Primary Sources

Honda Technical Service Manual (TSM): D14A3 Engine

Honda Service Information Bulletins (SIB): 92-041, 93-055

Honda Parts Catalogue (EPC): H-92-EG

SAE International: J1349 Engine Power Certification Standards

D14A3 Compatible Models

The Honda D14A3 was used across Honda's EG/EH platforms with transverse mounting. This engine received platform-specific adaptations-reinforced engine mounts for the CRX del Sol and a different intake manifold for the Civic DX-creating minor service part variations. All adaptations are documented in OEM technical bulletins.

Make:
Honda
Years:
1992-1995
Models:
Civic (EG6)
Variants:
DX, LX
View Source
Honda Group PT-1993
Make:
Honda
Years:
1993-1995
Models:
CRX del Sol (EG2)
Variants:
S
View Source
Honda Group PT-1993
Identification Guidance

Locate the engine code stamped on the front of the cylinder block, near the transmission flange (Honda TSM D14A3). The 8th VIN digit for EG/EH chassis indicates engine displacement ('D' for 1.4L). The D14A3 can be visually identified by its single camshaft cover and distributor ignition system. Critical differentiation from the carbureted D14A1: D14A3 has a throttle body and fuel rail. The ignition coil is integrated into the distributor cap; failure requires replacing the entire distributor assembly per Honda SIB 93-055.

Identification Details

Evidence:

Honda Technical Service Manual (TSM) D14A3

Location:

Stamped on the front of the cylinder block, near the transmission flange (Honda TSM D14A3).

Visual Cues:

  • Single camshaft cover.
  • Presence of a distributor (vs. coil-on-plug on later engines).
  • Casting mark 'D14A3' on the block.
Ignition Coil Service

Issue:

Premature failure of the distributor-integrated ignition coil can cause engine misfires, rough idle, or stalling, especially when the engine is hot.

Evidence:

Honda Service Bulletin 93-055

Recommendation:

Replace the entire distributor assembly with an updated unit if ignition coil failure is suspected, as per Honda Service Bulletin 93-055.

Common Reliability Issues - HONDA D14A3

The D14A3's primary documented reliability concern is distributor ignition coil failure, with elevated incidence in high-mileage or heat-soaked examples. Honda service data indicated a notable number of replacements were required after 100,000 km, while owner reports frequently cite misfires as a precursor. Extended idling and hot climates accelerate coil degradation.

Distributor ignition coil failure
Symptoms: Engine misfires, especially when hot, rough idle, difficulty starting, sudden stalling, Check Engine Light may illuminate.
Cause: Heat degradation of the coil's internal insulation within the distributor assembly, leading to electrical arcing or open circuits.
Fix: Replace the entire distributor assembly with a new OEM or high-quality remanufactured unit containing the updated coil design.
Timing belt failure
Symptoms: Engine suddenly stops running, will not start, possible loud clattering noise if valves are bent.
Cause: Age or mileage-related wear and tear on the rubber belt, or failure to replace at recommended intervals.
Fix: Replace the timing belt, tensioner, and idler pulleys as a complete kit with OEM parts. Inspect for valve damage if the belt has broken.
Valve cover gasket leaks
Symptoms: Oil smell from engine bay, oil residue on valve cover and spark plug tubes, minor oil drips on garage floor.
Cause: Age-hardening and shrinkage of the rubber valve cover gasket, allowing oil to seep past the sealing surface.
Fix: Replace the valve cover gasket with a new OEM part; ensure the valve cover surface is clean and flat before reinstallation.
Thermostat failure
Symptoms: Engine overheating, or conversely, engine takes too long to reach operating temperature, poor heater performance.
Cause: Mechanical failure of the thermostat's wax pellet or spring, causing it to stick open or closed.
Fix: Replace the thermostat and its gasket with a new OEM unit; bleed the cooling system to remove air pockets.
Research Basis

Analysis derived from Honda technical bulletins (1992-1995) and aggregated owner repair data (1995-2005). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about HONDA D14A3

Find answers to most commonly asked questions about HONDA D14A3.

Research Resources

Comprehensive technical documentation and regulatory references

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Regulation (EC) No 715/2007

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Commission Regulation (EU) 2017/1151

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Last Updated: 16 August 2025

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