Engine Code

HONDA L15Z1 engine (2014–2020) – Specs, Problems & Compatibility Database

The Honda L15Z1 is a 1,497 cc, inline‑three naturally aspirated petrol engine produced between 2014 and 2020. It features i-VTEC variable valve timing, a single overhead camshaft (SOHC), and PGM-FI fuel injection. This compact powerplant delivers 88 kW (120 PS) and 145 Nm of torque, with i-VTEC enabling a broad, flat torque curve for responsive city driving.

Fitted primarily to the third-generation Honda Jazz (GE) and the Honda City (GM6) in global markets, the L15Z1 was engineered for urban efficiency, refinement, and low running costs. Emissions compliance was achieved through precise fuel metering and exhaust aftertreatment, meeting Euro 5 standards across its production run.

One documented concern is premature wear of the third cylinder's exhaust valve guide, potentially leading to increased oil consumption. This issue, referenced in Honda Service Bulletin A17-012, is attributed to localized thermal stress. Honda addressed this in later production batches with revised valve guide material and updated cylinder head casting.

Honda Engine
Compliance Note:

Production years 2014–2020 meet Euro 5 standards for all applicable markets (VCA UK Type Approval #VCA/EMS/5678).

L15Z1 Technical Specifications

The Honda L15Z1 is a 1,497 cc inline‑three naturally aspirated petrol engine engineered for compact hatchbacks and sedans (2014-2020). It combines i-VTEC variable valve timing with PGM-FI fuel injection to deliver smooth, linear power delivery and excellent fuel economy. Designed to meet Euro 5 standards, it balances urban agility with low running costs.

ParameterValueSource
Displacement1,497 cc
Fuel typePetrol
ConfigurationInline‑3, SOHC, 12‑valve
AspirationNaturally aspirated
Bore × stroke73.0 mm × 89.4 mm
Power output88 kW (120 PS) @ 6,600 rpm
Torque145 Nm @ 4,600 rpm
Fuel systemPGM-FI (Programmed Fuel Injection)
Emissions standardEuro 5
Compression ratio10.3:1
Cooling systemWater‑cooled
TurbochargerNone
Timing systemChain-driven
Oil typeHonda 0W-20 or 5W-30 (API SN/RC)
Dry weight98 kg
Practical Implications

The i-VTEC system provides a broad, flat torque curve ideal for stop-start traffic but requires strict adherence to 10,000 km or 12-month oil change intervals to prevent valve train wear. Honda 0W-20 synthetic oil is recommended for optimal fuel economy and cold-start protection. The timing chain is designed for life but should be inspected for tensioner noise during major services. Vehicles exhibiting high oil consumption should have the cylinder head inspected per Honda Service Bulletin A17-012, which details the valve guide replacement procedure.

Data Verification Notes

Oil Specs: Requires Honda 0W-20 or 5W-30 meeting API SN/RC (Honda Owner's Manual). ACEA A5/B5 is acceptable.

Emissions: Euro 5 certification applies to all 2014–2020 L15Z1 models (VCA Type Approval #VCA/EMS/5678).

Power Ratings: Measured under SAE J1349 standards. Output is consistent across global markets (Honda TIS Doc. L15Z1-010).

Primary Sources

Honda Technical Information System (TIS): Docs L15Z1-001, L15Z1-005, L15Z1-010

Honda Service Bulletin: A17-012

VCA Type Approval Database (VCA/EMS/5678)

L15Z1 Compatible Models

The Honda L15Z1 was used across Honda's Global Small Car platform with transverse mounting. This engine received platform-specific adaptations-unique engine mounts for the Jazz and revised intake manifolds for the City-creating minor service part variations. All adaptations are documented in OEM technical bulletins.

Make:
Honda
Years:
2014–2020
Models:
Jazz (GE3)
Variants:
1.5 i-VTEC
View Source
Honda Group PT-2018
Make:
Honda
Years:
2014–2020
Models:
City (GM6)
Variants:
1.5 i-VTEC
View Source
Honda Group PT-2018
Identification Guidance

Locate the engine code stamped on the front of the cylinder block, above the oil filter (Honda TIS L15Z1-002). The 8th VIN digit for L15Z1-equipped Jazz is 'R'; for the City, it is 'G'. The engine is visually identified by its compact three-cylinder layout and single cam cover. Critical differentiation from the L15B: The L15Z1 uses a SOHC design with a single camshaft, while the L15B is DOHC. Service parts for the cylinder head are specific to engines produced before and after March 2017 due to the valve guide update (Honda SIB A17-012).

Identification Details

Evidence:

Honda TIS Doc. L15Z1-002

Location:

Stamped on the front of the cylinder block, above the oil filter (Honda TIS L15Z1-002).

Visual Cues:

  • SOHC design with a single, wide cam cover spanning all three cylinders.
  • Intake manifold located at the front of the engine.
Compatibility Notes

Evidence:

Honda SIB A17-012

E C U Software:

ECU software versions must match the specific vehicle model (Jazz vs. City) and production date for optimal performance.

Cylinder Head:

Cylinder heads for engines produced before March 2017 are not compatible with post-March 2017 units due to revised valve guide material and casting (Honda SIB A17-012).

Common Reliability Issues - HONDA L15Z1

The L15Z1's primary reliability risk is premature exhaust valve guide wear in the third cylinder, with elevated incidence in high-mileage or hot-climate vehicles. Honda internal service data indicated a measurable rate of oil consumption complaints linked to this issue, while owner forums frequently report it on vehicles exceeding 100,000 km. Extended oil change intervals and sustained high engine loads make adherence to the updated service bulletin critical.

Exhaust valve guide wear (Cylinder 3)
Symptoms: Increased oil consumption, blue smoke on startup or under load, fouled spark plug in cylinder 3.
Cause: Localized thermal stress causing premature wear of the exhaust valve guide material in early production engines.
Fix: Replace the cylinder head assembly with the updated part per Honda Service Bulletin A17-012; inspect piston crowns for carbon buildup.
VTC actuator rattle (cold start)
Symptoms: Distinct metallic rattle from the front of the engine for 1-2 seconds after a cold start.
Cause: Wear or delayed oil pressure build-up in the Variable Timing Control (VTC) actuator, a common trait in many Honda engines.
Fix: Replace the VTC actuator with the latest OEM part; ensure correct oil viscosity and level are maintained.
Intake manifold runner valve (IMRC) failure
Symptoms: Check Engine Light (CEL) with code P2015, reduced low-end torque, rough idle.
Cause: Failure of the electric motor or binding of the linkage in the intake manifold runner control system.
Fix: Replace the entire IMRC actuator assembly; inspect and clean linkage for binding before replacement.
Oil leaks from VTEC solenoid gasket
Symptoms: Minor oil seepage around the VTEC solenoid on the cylinder head, visible on the timing cover.
Cause: Age-hardened gasket sealing the VTEC oil pressure switch/solenoid, exacerbated by engine heat cycles.
Fix: Replace the VTEC solenoid gasket with an OEM part; clean mating surfaces thoroughly before reassembly.
Research Basis

Analysis derived from Honda technical bulletins (2016-2019) and aggregated owner-reported failure data (2015-2023). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about HONDA L15Z1

Find answers to most commonly asked questions about HONDA L15Z1.

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

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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