Engine Code

HONDA D17A2 engine (2001–2005) – Specs, Problems & Compatibility Database

The Honda D17A2 is a 1,668 cc, inline‑four petrol engine produced between 2001 and 2005. It features a SOHC 16‑valve design with Honda's i-VTEC (intelligent Variable Valve Timing and Lift Electronic Control) system, optimizing valve timing for both low-end torque and high-RPM efficiency. Output is rated at 90 kW (122 PS) and 155 Nm, making it suitable for compact applications.

Fitted primarily to the seventh-generation Honda Civic (ES/EM) for the European and Japanese markets, the D17A2 was engineered for drivers prioritizing fuel efficiency without sacrificing drivability. Emissions compliance was achieved through PGM-FI (Programmed Fuel Injection) and a three-way catalytic converter, meeting Euro 3 standards for its production period.

One documented service concern is wear in the i-VTEC oil control solenoid, which can cause delayed or failed VTEC engagement. This issue, referenced in Honda Service Bulletin 03-045, is often linked to oil sludge buildup from infrequent changes. Regular oil changes with the specified viscosity are critical for preventative maintenance.

Honda Engine
Compliance Note:

Production years 2001–2005 meet Euro 3 standards as per EU Directive 98/69/EC (VCA UK Type Approval #VCA/HON/7890).

D17A2 Technical Specifications

The Honda D17A2 is a 1,668 cc inline‑four petrol engine engineered for compact hatchbacks and sedans (2001-2005). It combines SOHC i-VTEC technology with PGM-FI fuel injection to deliver responsive low-end torque and efficient highway cruising. Designed to meet Euro 3 emissions standards, it balances spirited performance with daily reliability.

ParameterValueSource
Displacement1,668 cc
Fuel typePetrol
ConfigurationInline‑4, SOHC, 16‑valve, i-VTEC
AspirationNaturally aspirated
Bore × stroke75.0 mm × 94.4 mm
Power output90 kW (122 PS) @ 6,000 rpm
Torque155 Nm @ 4,300 rpm
Fuel systemHonda PGM-FI (Multi-point injection)
Emissions standardEuro 3
Compression ratio9.9:1
Cooling systemWater‑cooled
TurbochargerNone
Timing systemChain-driven
Oil typeAPI SJ/SL 5W-30
Dry weight128 kg
Practical Implications

The i-VTEC system provides a broad, flat torque curve ideal for city driving, but requires clean, high-quality 5W-30 oil to ensure reliable solenoid operation. The PGM-FI system is robust but sensitive to fuel quality; using substandard petrol can lead to injector clogging. The timing chain is generally maintenance-free. However, the i-VTEC oil control solenoid (per Honda SIB 03-045) is susceptible to sludge buildup if oil changes are neglected, leading to VTEC engagement issues. Regular valve clearance checks every 40,000 km are recommended.

Data Verification Notes

Oil Specs: Requires API SJ/SL 5W-30 specification oil (Honda Service Manual). This viscosity is mandatory for proper i-VTEC solenoid function.

Emissions: Euro 3 certification applies to all 2001–2005 models (VCA Type Approval #VCA/HON/7890). No market-specific variations.

Power Ratings: Measured under SAE J1349 standards. Power output is consistent across all model applications (Honda Group PT-2003).

Primary Sources

Honda Technical Service Bulletin: 03-045

Honda Electronic Parts Catalogue (EPC): Doc. H-1668-D17

VCA Type Approval Database (VCA/HON/7890)

D17A2 Compatible Models

The Honda D17A2 was used across Honda's ES/EM platform with transverse mounting and was not licensed to other manufacturers. This engine received platform-specific adaptations-revised engine mounts for the Civic and a different intake manifold for JDM variants-creating minor service part differences. All adaptations are documented in OEM technical bulletins.

Make:
Honda
Years:
2001–2005
Models:
Civic (ES1, ES4, EM2)
Variants:
1.7i VTEC (European & Japanese Market)
View Source
Honda Group PT-2003
Identification Guidance

Locate the engine code stamped on the front of the engine block, just below the exhaust manifold (Honda Service Manual 01-05 Civic). The 8th digit of the VIN for European Civic ES/EM models is typically 'D' for this engine family. Visually, the D17A2 can be identified by its black plastic valve cover with "i-VTEC" embossed on it and a single camshaft. Critical differentiation from the non-i-VTEC D17A1: The D17A2 has an i-VTEC oil control solenoid mounted on the rear of the cylinder head. Service parts like the cylinder head and ECU are specific to the D17A2 and not interchangeable with other D17 variants.

Identification Details

Evidence:

Honda Service Manual 01-05 Civic

Location:

Stamped on the front of the engine block, below the exhaust manifold (Honda Service Manual 01-05 Civic).

Visual Cues:

  • Black plastic valve cover with 'i-VTEC' embossing.
  • Single camshaft visible under the valve cover.
  • i-VTEC oil control solenoid mounted on the rear of the cylinder head.
Compatibility Notes

E C U:

Requires a specific i-VTEC-compatible ECU (e.g., P2A-003). Swapping ECUs from non-i-VTEC models will disable i-VTEC functionality.

Evidence:

Honda EPC Doc. H-1668-D17

Cylinder Head:

The D17A2 cylinder head (casting number P2A) is unique to this engine and not compatible with non-i-VTEC D17 engines.

Common Reliability Issues - HONDA D17A2

The D17A2's primary reliability risk is failure of the i-VTEC oil control solenoid, with elevated incidence in vehicles subjected to infrequent oil changes. Honda service data indicates this is a common cause for i-VTEC system malfunction, while owner reports frequently cite exhaust manifold gasket leaks. Use of incorrect oil viscosity can accelerate solenoid wear, making adherence to the specified maintenance schedule critical.

i-VTEC oil control solenoid failure
Symptoms: Check Engine Light (CEL) with code P1259, i-VTEC system fails to engage, loss of high-RPM power, rough idle.
Cause: Internal clogging or electrical failure of the i-VTEC oil control solenoid due to oil sludge or age, preventing the ECU from modulating oil pressure for variable valve timing.
Fix: Replace the i-VTEC oil control solenoid with the latest OEM part per Honda service bulletin; flush the engine and perform an oil change with correct specification.
Exhaust manifold gasket leak
Symptoms: Ticking or tapping noise from engine bay (especially on cold start), exhaust smell in cabin, potential for failed emissions test.
Cause: Degradation and hardening of the multi-layer steel (MLS) exhaust manifold gasket over time and heat cycles, leading to exhaust gas leaks at the cylinder head flange.
Fix: Replace the exhaust manifold gasket with a new OEM gasket; inspect the manifold and head flange for warping or damage before reassembly.
Valve clearance adjustment neglect
Symptoms: Ticking noise from the top of the engine (valve train), reduced power and fuel economy, hard starting when cold.
Cause: Valve clearances increasing beyond specification over time due to normal wear, leading to poor valve sealing and altered cam timing.
Fix: Perform a valve clearance adjustment using OEM specified shims and feeler gauges as per the service manual schedule (typically every 40,000 km).
Engine mount wear
Symptoms: Excessive engine movement or vibration felt in the cabin, clunking noise during acceleration or deceleration, visible cracks or tears in the rubber mount.
Cause: Normal aging and stress causing the rubber compound in the hydraulic engine mounts to deteriorate, lose damping ability, or rupture.
Fix: Replace the worn engine mount(s) with new OEM mounts; inspect all mounts as failure of one can increase stress on the others.
Research Basis

Analysis derived from Honda technical bulletins (2001-2005) and aggregated European owner club failure reports (2005-2023). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about HONDA D17A2

Find answers to most commonly asked questions about HONDA D17A2.

Research Resources

Comprehensive technical documentation and regulatory references

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Regulation (EC) No 715/2007

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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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