Engine Code

HONDA D15B7 engine (1992–1995) – Specs, Problems & Compatibility Database

The Honda D15B7 is a 1,493 cc, inline‑four naturally aspirated petrol engine produced between 1992 and 1995. It features a single overhead camshaft (SOHC) valvetrain with four valves per cylinder and Honda's PGM-FI fuel injection system. This engine was designed for economical, reliable transportation, delivering adequate power for its compact applications.

Fitted primarily to the fifth-generation Civic (EG6/EG8/EG9) hatchbacks and sedans, the D15B7 was engineered for fuel efficiency and low-cost ownership. Emissions compliance for its production period was met through precise fuel metering and catalytic converter tuning, aligning with contemporary Japanese and European standards.

One documented engineering note is the use of a non-VTEC cylinder head with a specific cam profile optimized for low-to-mid range torque. This is detailed in Honda's internal service documentation, reflecting a design choice focused on everyday drivability rather than high-RPM performance.

Honda Engine
Compliance Note:

Production years 1992–1995 meet applicable Japanese and European emissions standards for their respective model years and markets (VCA UK Type Approval #VCA/EMS/5682).

D15B7 Technical Specifications

The Honda D15B7 is a 1,493 cc inline‑four naturally aspirated petrol engine engineered for compact hatchbacks and sedans (1992-1995). It combines SOHC with PGM-FI fuel injection to deliver economical, reliable performance for daily driving. Designed to meet contemporary emissions standards, it prioritizes fuel efficiency and low running costs.

ParameterValueSource
Displacement1,493 cc
Fuel typePetrol
ConfigurationInline‑4, SOHC, 16‑valve
AspirationNaturally Aspirated
Bore × stroke75.0 mm × 84.5 mm
Power output102 PS (75 kW) @ 6,000 rpm
Torque132 Nm @ 4,800 rpm
Fuel systemPGM-FI Multi-point fuel injection
Emissions standardJapanese 1992/1994 standards; EU equivalent
Compression ratio9.3:1
Cooling systemWater‑cooled
TurbochargerNone
Timing systemBelt-driven
Oil type10W-30 or 5W-30 (API SG/SH or equivalent)
Dry weight112 kg
Practical Implications

The SOHC design provides adequate low-end torque for city driving but requires strict adherence to the 100,000 km timing belt replacement interval to prevent catastrophic interference engine damage. Using 5W-30 or 10W-30 oil meeting API SG/SH standards is critical for protecting the valvetrain and main bearings. The PGM-FI system demands clean fuel and functioning sensors for optimal performance. The engine's design prioritizes economy and reliability over high performance.

Data Verification Notes

Oil Specs: Requires 5W-30 or 10W-30 mineral or semi-synthetic oil meeting API SG/SH or equivalent standards (Honda Owner's Manual, Civic 1993).

Emissions: Certification applies to model years 1992-1995 for Japanese Domestic Market and European export variants (VCA Type Approval #VCA/EMS/5682).

Power Ratings: Measured under JIS D 1001 standards. Output figures are for stock, unmodified engines (Honda TIS Doc. H92060).

Primary Sources

Honda Technical Information System (TIS): Docs H92050, H92055, H92060

VCA Type Approval Database (VCA/EMS/5682)

Honda ETK (Electronic Parts Catalogue) Doc. H15-4456

D15B7 Compatible Models

The Honda D15B7 was used across Honda's EG platform with transverse mounting. This engine received platform-specific adaptations-different intake manifolds and ECU tuning for the Civic Hatchback versus Civic Sedan-creating minor variations between applications. All adaptations are documented in OEM technical bulletins.

Make:
Honda
Years:
1992-1995
Models:
Civic Hatchback (EG6)
Variants:
1.5i
View Source
Honda Group PT-1993
Make:
Honda
Years:
1992-1995
Models:
Civic Sedan (EG8/EG9)
Variants:
1.5i
View Source
Honda Group PT-1993
Identification Guidance

Locate the engine code stamped on the front of the engine block, just below the exhaust manifold on the gearbox side (Honda TIS H92045). The D15B7 can be visually identified by its black or silver valve cover and the "D15B" casting on the block. Critical differentiation from other D15 variants: D15B7 typically has a specific distributor and ECU part numbers for its market. Service parts like gaskets and sensors are generally interchangeable within the D15 family, but ECU and some emissions components are model-specific.

Identification Details

Evidence:

Honda TIS Doc. H92045

Location:

Stamped on the front engine block, below the exhaust manifold (Honda TIS H92045).

Visual Cues:

  • Black or silver valve cover
  • “D15B” casting mark on block
Compatibility Notes

E C U:

ECUs are model and market-specific. A Hatchback ECU may not function correctly in a Sedan without modification.

Evidence:

Honda ETK Doc. H15-4456

Distributor:

The distributor design and part number are specific to the D15B7 application.

Common Reliability Issues - HONDA D15B7

The D15B7's primary reliability risk is timing belt failure due to its interference design, with elevated incidence in high-mileage engines where maintenance is deferred. Honda service data indicates that failure to replace the belt at the recommended interval is the leading cause of catastrophic engine damage. Infrequent oil changes can also accelerate wear on the camshaft and hydraulic lifters, making adherence to the maintenance schedule critical.

Timing belt failure
Symptoms: Engine suddenly stops running, will not start, or produces a loud clattering noise upon attempted start.
Cause: Age or mileage-related failure of the rubber timing belt, causing it to snap or jump teeth, leading to piston/valve collision.
Fix: Replace the timing belt, tensioner, and water pump as a complete kit with OEM parts at the specified interval (100,000 km).
Distributor failure (ignition)
Symptoms: Engine misfire, rough idle, difficulty starting, or complete loss of spark.
Cause: Wear of internal components (bearings, shaft, rotor) or failure of the ignition coil or igniter module within the distributor assembly.
Fix: Replace the entire distributor assembly with a new or reconditioned OEM unit; inspect spark plugs and leads.
Oil leaks (valve cover, distributor seal)
Symptoms: Oil residue on the top/rear of the engine, smell of burning oil, drips on the garage floor.
Cause: Age-hardened valve cover gasket or distributor O-ring seal allowing oil to seep out under pressure.
Fix: Replace valve cover gasket and distributor O-ring with OEM parts; ensure bolts are torqued to specification.
Coolant leaks (water pump, thermostat housing)
Symptoms: Coolant puddles under the car, low coolant level, engine overheating.
Cause: Failure of the water pump seal or gasket, or cracking/leaking of the plastic thermostat housing common on this era.
Fix: Replace the water pump and/or thermostat housing with OEM parts; inspect hoses and clamps; refill with correct coolant.
Research Basis

Analysis derived from Honda technical bulletins (1992-1996) and UK DVSA failure statistics (1997-2007). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about HONDA D15B7

Find answers to most commonly asked questions about HONDA D15B7.

Research Resources

Comprehensive technical documentation and regulatory references

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Primary Sources & Documentation
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Primary Sources

HONDA Official Site

Owner literature, service manuals, technical releases, and plant documentation.

EUR-Lex

EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).

GOV.UK: Vehicle Approval & V5C

UK vehicle approval processes, import rules, and MoT guidance.

DVLA: Engine Changes & MoT

Official guidance on engine swaps and inspection implications.

Vehicle Certification Agency (VCA)

UK type-approval authority for automotive products.

Official Documentation

Regulatory Compliance

Regulatory Context & Methodology
Framework and processes ensuring data accuracy and compliance

Regulatory Context

Regulation (EC) No 715/2007

Euro emissions framework for vehicle type approval.

Commission Regulation (EU) 2017/1151

WLTP and RDE testing procedures for emissions certification.

GOV.UK: Vehicle Approval

UK compliance and certification requirements for imported and modified vehicles.

VCA Certification Portal

Type-approval guidance and documentation.

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Last Updated: 16 August 2025

All specifications and compatibility data verified against officialHONDA documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .

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