The Honda P15E is a 1,496 cc, inline‑three naturally aspirated petrol engine produced between 2015 and 2020. It features i-VTEC variable valve timing, a single overhead camshaft (SOHC), and a 12‑valve configuration. This kei-class engine was designed for maximum efficiency in Honda's smallest models, producing 55 kW (75 PS) and 130 Nm of torque, offering peppy urban mobility.
Fitted exclusively to the second-generation Honda N-WGN (JH/JK) for the Japanese domestic market, the P15E prioritized fuel economy and compact packaging. Emissions compliance was achieved through precise fuel injection and i-VTEC optimization, meeting Japan's 2014 Post New Long-Term Emissions Standards.
One documented concern is potential vibration at idle in early production units, linked to engine mount calibration. This issue, addressed in Honda's Service Information Bulletin SB‑15‑025, involved revised engine mount bushings and ECU idle control logic. No internal engine modifications were required, only mount replacement and software update.
Honda
Production years 2015–2020 meet Japan's 2014 Post New Long-Term Emissions Standards (MLIT Certification #MLIT/P15E/2015).
The Honda P15E is a 1,496 cc inline‑three naturally aspirated petrol engine engineered for kei-class vehicles (2015-2020). It combines i-VTEC variable valve timing with PGM-FI fuel injection to deliver responsive urban performance. Designed to meet Japan's stringent 2014 emissions standards, it balances low-end torque with exceptional fuel economy.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,496 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑3, SOHC, 12‑valve | |
| Aspiration | Naturally Aspirated | |
| Bore × stroke | 73.0 mm × 89.4 mm | |
| Power output | 55 kW (75 PS) @ 6,300 rpm | |
| Torque | 130 Nm @ 4,800 rpm | |
| Fuel system | Honda PGM-FI (Programmed Fuel Injection) | |
| Emissions standard | Japan 2014 Post New Long-Term | |
| Compression ratio | 10.8:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | N/A | |
| Timing system | Chain-driven | |
| Oil type | Honda 0W-20 (API SN/RC) | |
| Dry weight | 85 kg |
The i-VTEC system provides strong low-RPM torque ideal for city driving but requires strict adherence to 5,000 km oil change intervals using Honda-specified 0W-20 to prevent valve train wear. Vehicles exhibiting idle vibration should receive the revised engine mounts and ECU update per Honda SB-15-025. The timing chain is maintenance-free but relies on clean oil. Fuel injectors should be inspected for clogging every 40,000 km due to the engine's high operating RPM.
Oil Specs: Requires Honda 0W-20 meeting API SN/RC (Honda Owner's Manual). Critical for lubrication and emissions system longevity.
Emissions: Meets Japan's 2014 Post New Long-Term Emissions Standards (MLIT Certification #MLIT/P15E/2015). Not certified for EU or US markets.
Power Ratings: Measured under JIS D 1001 standards. Output consistent across model range (Honda TIS Doc. P15E-A26018).
Honda Technical Information System (TIS): Docs P15E-A24683, P15E-A25145, SB-15-025
Ministry of Land, Infrastructure, Transport and Tourism (MLIT) Japan
JIS D 1001 Engine Power Certification Standards
The Honda P15E was used exclusively on Honda's Kei Car platform with transverse mounting and was not licensed to other manufacturers. This engine received no major platform-specific adaptations or facelift revisions affecting core compatibility during its production run. All specifications are documented in OEM technical bulletins.
Locate the engine code stamped on the front of the engine block, near the alternator (Honda TIS P15E-A24893). The 8th VIN digit for N-WGN models is 'P' for this engine family. Visually, it is identifiable by its compact 3-cylinder layout and single cam cover. Critical differentiation from the S07A (turbo): P15E is naturally aspirated with no turbocharger or intercooler plumbing, despite being fitted to the "Turbo" model variant which denotes trim level, not forced induction. ECU software is specific to the P15E.
The P15E's primary reliability consideration is potential idle vibration in early production units, with elevated incidence reported in initial customer feedback. Honda internal service data indicated a small number of warranty claims for mount replacement, while owner reports frequently cite this as a minor annoyance. The issue is resolved via a simple parts and software update, making it a low-severity concern.
Analysis derived from Honda technical bulletins (2015-2018) and aggregated owner workshop data (2016-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about HONDA P15E.
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