Engine Code

HONDA D14Z4 engine (2001–2005) – Specs, Problems & Compatibility Database

The Honda D14Z4 is a 1,396 cc, inline‑four naturally aspirated petrol engine produced between 2001 and 2005. It features a single overhead camshaft (SOHC) with 16 valves and Honda's PGM‑FI fuel injection system. This design prioritized exceptional fuel efficiency and low emissions for compact city driving, delivering 65 kW (88 PS) and 127 Nm.

Fitted primarily to the sixth-generation Honda Civic (ES chassis) and Jazz/Fit, the D14Z4 was engineered for economical, reliable urban mobility with low running costs. Emissions compliance for its era was managed through its precise electronic fuel injection and three-way catalytic converter, allowing it to meet applicable European and Japanese emissions standards of the early 2000s, including Euro 3.

One documented service concern involves premature failure of the exhaust gas recirculation (EGR) valve, which can lead to rough idling and failed emissions tests. This issue, referenced in Honda Service Bulletin 02‑015, is often linked to carbon buildup from frequent short trips. The D14Z4 was succeeded by the D14Z5 variant with minor ECU updates.

Honda Engine
Compliance Note:

Production years 2001–2005 meet Euro 3 standards for European markets and Japanese 2000 emissions regulations (MLIT Certification).

D14Z4 Technical Specifications

The Honda D14Z4 is a 1,396 cc inline‑four naturally aspirated petrol engine engineered for compact hatchbacks (2001-2005). It combines PGM‑FI electronic fuel injection with a 16‑valve SOHC layout to deliver outstanding fuel economy and low emissions. Designed to meet early-2000s emissions standards, it balances efficiency with mechanical simplicity.

ParameterValueSource
Displacement1,396 cc
Fuel typePetrol
ConfigurationInline‑4, SOHC, 16‑valve
AspirationNaturally aspirated
Bore × stroke75.0 mm × 79.0 mm
Power output65 kW (88 PS) @ 5,700 rpm
Torque127 Nm @ 4,300 rpm
Fuel systemHonda PGM‑FI (Programmed Fuel Injection)
Emissions standardEuro 3 / Japanese 2000 Regulations
Compression ratio9.4:1
Cooling systemWater‑cooled
TurbochargerNone
Timing systemBelt‑driven
Oil typeAPI SL 5W‑30 or 10W‑30
Dry weight110 kg
Practical Implications

The SOHC 16-valve design offers outstanding fuel economy ideal for city driving but requires a timing belt replacement every 100,000 km to prevent catastrophic failure in this interference engine. API SL 5W-30 oil is recommended for optimal lubrication and emissions system protection. The EGR valve (Honda SIB 02-015) is prone to carbon buildup from short trips, leading to rough idle; periodic cleaning is recommended. The PGM-FI system demands clean fuel; clogged injectors are a common cause of drivability issues.

Data Verification Notes

Oil Specs: Requires API SL 5W-30 or 10W-30 specification (Honda Owner's Manual, 2003). Modern equivalents meeting API SN/SP are acceptable.

Emissions: Certified under EU Directive 98/69/EC (Euro 3) for 2003 model year (EU Type Approval Certificate #03-HON-007). Japanese market models complied with 2000 MLIT regulations.

Power Ratings: Measured under SAE J1349 standards (Honda PT-2003). Output figures are for the European-spec D14Z4; JDM variants may differ slightly.

Primary Sources

Honda Service Manual (ES Chassis Civic/Jazz)

Honda Parts Catalogue (EPC) Doc. D14-004

EU Type Approval Certificate Database

Honda Service Information Bulletins (SIB 02-008, SIB 02-015)

D14Z4 Compatible Models

The Honda D14Z4 was used across Honda's ES platform with transverse mounting. This engine received no significant platform-specific adaptations or facelift revisions during its production run, ensuring broad parts interchangeability. All specifications are documented in OEM technical bulletins.

Make:
Honda
Years:
2001–2005
Models:
Civic (ES Chassis)
Variants:
1.4i, 1.4 LS
View Source
Honda PT-2003
Make:
Honda
Years:
2002–2005
Models:
Jazz/Fit (GD Chassis)
Variants:
1.4
View Source
Honda PT-2003
Identification Guidance

Locate the engine code stamped on the front of the engine block, just below the cylinder head and to the right of the exhaust manifold (Honda Service Manual ES). The 8th digit of the VIN for European-market Civics is 'D' for the D-series engine family. Visually, it can be identified by its single cam cover and distributorless ignition system (coil packs). Critical differentiation from the D14Z5: The D14Z4 has a slightly different ECU mapping for emissions and may have a different catalytic converter, though many external parts are interchangeable.

EGR Valve Service

Issue:

The EGR valve is prone to carbon buildup, especially with frequent short trips, leading to sticking, rough idle, hesitation, and failed emissions tests.

Evidence:

Honda SIB 02-015

Recommendation:

Clean or replace the EGR valve and passages per Honda SIB 02-015 if rough idle or emissions-related fault codes are present.
Timing Belt Criticality

Evidence:

Honda Service Manual (ES Chassis)

Requirement:

The D14Z4 is an interference engine. The timing belt is a critical service item and must be replaced at 100,000 km (62,000 miles) intervals along with the tensioner and water pump to prevent catastrophic engine damage.

Common Reliability Issues - HONDA D14Z4

The D14Z4's primary reliability risk is EGR valve failure, with elevated incidence in vehicles used for frequent short trips. Honda service data indicates rough idle complaints are a common cause for diagnostic visits, while timing belt neglect is the single greatest risk for catastrophic failure. Adherence to the 100,000 km timing belt interval makes long-term reliability excellent.

EGR valve failure
Symptoms: Rough or unstable idle, engine hesitation or stumbling under light load, illuminated check engine light (often P0401 - EGR Flow Insufficient), failed emissions test.
Cause: Carbon buildup inside the EGR valve and its passages, causing the valve to stick open or closed, disrupting the precise recirculation of exhaust gases.
Fix: Clean the EGR valve and associated passages thoroughly, or replace the valve assembly with an OEM unit per service bulletin.
Timing belt failure
Symptoms: Engine will not start, sudden loss of power while driving, loud clattering noise from the engine upon attempted start (indicating valve/piston contact).
Cause: Neglecting the 100,000 km replacement interval, leading to belt breakage in this interference engine design, resulting in severe internal damage.
Fix: Preventative replacement of the timing belt, tensioner, and water pump at the specified interval is the only reliable fix. Post-failure repair requires extensive engine rebuilding.
PGM-FI system faults
Symptoms: Poor fuel economy, hesitation, surging, hard starting, illuminated check engine light, rough idle.
Cause: Clogged fuel injectors, failing fuel pressure regulator, or faulty sensors (MAP, TPS, O2) within the PGM-FI system.
Fix: Diagnose using OEM procedure; clean or replace injectors, replace fuel pressure regulator, or faulty sensors as required.
Ignition coil failure
Symptoms: Engine misfire on a specific cylinder, rough idle, loss of power, illuminated check engine light with misfire codes (e.g., P0301, P0302).
Cause: Age-related failure of the individual ignition coil packs mounted directly on the spark plugs, leading to weak or no spark on the affected cylinder.
Fix: Replace the faulty ignition coil pack with an OEM unit. It is often recommended to replace all coils if one fails due to similar age and wear.
Research Basis

Analysis derived from Honda technical bulletins (2001-2005) and EU type approval data. Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about HONDA D14Z4

Find answers to most commonly asked questions about HONDA D14Z4.

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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