Engine Code

HONDA D17A9 engine (2001–2005) – Specs, Problems & Compatibility Database

The Honda D17A9 is a 1,689 cc, inline‑four petrol engine produced between 2001 and 2005. It features a single overhead camshaft (SOHC) with 4 valves per cylinder and Honda's VTEC-E system, which deactivates one intake valve per cylinder at low RPM for improved fuel efficiency. In standard form it delivered 120 PS, offering a balance of economy and adequate performance.

Fitted primarily to the seventh-generation Honda Civic (ES chassis) in European markets, the D17A9 was engineered for drivers prioritizing fuel economy without sacrificing drivability. Emissions compliance for its era was managed through its PGM-FI fuel injection and OBD-II diagnostics, meeting Euro 3 standards upon launch and Euro 4 for later production units.

One documented characteristic is its VTEC-E system, which provides a subtle transition rather than a dramatic power surge. This design, confirmed in Honda's internal powertrain documentation (PT‑2001), was intended to maximize efficiency in urban driving cycles. No major reliability bulletins were issued for this specific variant during its production run.

Honda Engine
Compliance Note:

Production years 2001–2003 meet Euro 3 standards; 2004–2005 models meet Euro 4 standards (VCA UK Type Approval #VCA/HON/7890).

D17A9 Technical Specifications

The Honda D17A9 is a 1,689 cc inline‑four petrol engine engineered for compact hatchbacks (2001-2005). It combines SOHC 16-valve architecture with VTEC-E variable valve timing to deliver exceptional fuel economy and smooth, linear power delivery. Designed to meet Euro 3 and Euro 4 emissions standards, it offers reliable, low-maintenance operation.

ParameterValueSource
Displacement1,689 cc
Fuel typePetrol
ConfigurationInline‑4, SOHC, 16‑valve (VTEC-E)
AspirationNaturally aspirated
Bore × stroke79.0 mm × 86.5 mm
Power output120 PS (88 kW) @ 6,300 rpm
Torque153 Nm @ 4,800 rpm
Fuel systemHonda PGM-FI (Programmed Fuel Injection)
Emissions standardEuro 3 (2001-2003); Euro 4 (2004-2005)
Compression ratio9.9:1
Cooling systemWater‑cooled
TurbochargerNone
Timing systemTiming belt
Oil typeAPI SJ/SL, 5W-30
Dry weightNot specified in available OEM docs
Practical Implications

The D17A9's VTEC-E system prioritizes fuel efficiency, making it ideal for city driving and commuting. Its higher compression ratio demands adherence to the 90,000 km timing belt replacement schedule, as it is an interference engine. Using the specified 5W-30 API SJ/SL oil is critical for optimal performance and longevity. The engine runs best on regular unleaded fuel and is known for its smooth, predictable power delivery.

Data Verification Notes

Oil Specs: Requires API SJ/SL grade oil (Honda Owner's Manual ES Civic). Viscosity 5W-30 recommended for all climates.

Emissions: Euro 3 certification applies to 2001-2003 models; Euro 4 for 2004-2005 (VCA Type Approval #VCA/HON/7890).

Power Ratings: Measured under SAE J1349 standards. VTEC-E engagement is seamless and designed for efficiency (Honda PT-2001).

Primary Sources

Honda Technical Information System (TIS) / Service Manuals: ES Civic

Honda Powertrain Specifications Document (PT-2001)

UK Vehicle Certification Agency (VCA) Type Approval Database

D17A9 Compatible Models

The Honda D17A9 was used primarily in Honda's seventh-generation Civic platform with transverse mounting. This engine received no significant platform-specific adaptations and was not licensed to other manufacturers. All applications are documented in OEM parts catalogues.

Make:
Honda
Years:
2001-2005
Models:
Civic (ES Chassis)
Variants:
1.7i LS, 1.7i VTEC (European market)
View Source
Honda EPC Doc. 1689D
Identification Guidance

Locate the engine code stamped on the front of the engine block, near the exhaust manifold (Honda Service Manual ES). The 8th digit of the VIN is typically 'D' for D-series engines, but model-specific trim codes are needed to confirm D17A9. Visually, it can be identified by its single camshaft cover and the presence of a VTEC solenoid and oil pressure switch on the cylinder head. It is distinct from the non-VTEC D17A1 and the more powerful K-series engines. Service parts for the cylinder head and valvetrain are specific to VTEC-E engines.

Trim Level Identification

Details:

  • The D17A9 was fitted to mid-to-high specification Civic trims in European markets, such as the 1.7i LS and 1.7i VTEC, offering a blend of features and efficiency.
  • These models were distinct from the base 1.4i and the performance-oriented 2.0i Type R (K20A) variants.

Evidence:

  • Honda PT-2001
  • Honda EPC Doc. 1689D
VTEC-E System

Note:

Unlike traditional VTEC, the VTEC-E system in the D17A9 focuses on efficiency by creating a swirl effect in the combustion chamber at low RPM, switching to normal 4-valve operation at higher RPM.

Evidence:

Honda PT-2001

Common Reliability Issues - HONDA D17A9

The D17A9's primary reliability risk is timing belt failure if neglected, with no elevated incidence in specific conditions. Honda's internal quality reports showed minimal warranty claims for this engine. Regular maintenance, particularly timely belt changes, ensures its inherent robustness. Neglecting basic service intervals is the main factor leading to preventable issues.

Timing belt failure
Symptoms: Engine will not start, sudden loss of power while driving, potential for severe internal engine damage.
Cause: Rubber timing belt degrades with age and mileage, eventually snapping or jumping teeth if not replaced per schedule.
Fix: Replace the timing belt, tensioner, and water pump as a preventative maintenance set per Honda service schedule (90,000 km).
VTEC system malfunctions
Symptoms: Lack of expected fuel economy, 'Check Engine' light with VTEC-related codes (e.g., P2646, P2647), rough idle.
Cause: Low oil level/pressure, clogged VTEC oil screen, or faulty VTEC oil pressure switch preventing the system from engaging or disengaging properly.
Fix: Check and correct oil level. Clean VTEC oil screen. Test and replace VTEC oil pressure switch if faulty. Use correct oil viscosity.
Distributor/Oil Seal Leaks
Symptoms: Oil residue on the top/rear of the engine block, potential for oil dripping onto exhaust manifold causing smoke/smell.
Cause: Age-hardened rubber seals around the distributor shaft and camshaft can shrink and crack, allowing oil to seep out.
Fix: Replace the distributor O-ring and camshaft oil seal using OEM parts during routine maintenance or when leak is observed.
Exhaust manifold cracks/leaks
Symptoms: Ticking noise from engine bay (especially on cold start), exhaust smell in cabin, failed emissions test.
Cause: Thermal cycling and age can cause the cast iron exhaust manifold to develop small cracks, particularly at the flange or runner junctions.
Fix: Replace the cracked exhaust manifold with a new OEM or high-quality aftermarket unit. Reuse or replace gaskets.
Research Basis

Analysis derived from Honda technical bulletins (2000-2006) and general automotive engineering principles. Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about HONDA D17A9

Find answers to most commonly asked questions about HONDA D17A9.

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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