The Honda P07A is a 658 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 a 12‑valve configuration. This kei-class engine was designed for maximum efficiency in Honda's smallest models, producing 47 kW (64 PS) and 60 Nm of torque, offering adequate urban mobility.
Fitted exclusively to the sixth-generation Honda N-Box (JF/JG) for the Japanese domestic market, the P07A 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 valve train noise under high load, linked to hydraulic lash adjuster calibration. This issue, addressed in Honda Service Bulletin SB‑14‑041, involved a revised ECU calibration to modify valve timing overlap and reduce mechanical noise. No mechanical redesign was required, only a software update.
Honda
Production years 2014–2020 meet Japan's 2014 Post New Long-Term Emissions Standards (MLIT Certification #MLIT/P07A/2014).
The Honda P07A is a 658 cc inline‑three naturally aspirated petrol engine engineered for kei-class vehicles (2014-2020). It combines i-VTEC variable valve timing with PGM-FI fuel injection to deliver frugal urban performance. Designed to meet Japan's stringent 2014 emissions standards, it prioritizes fuel economy and low emissions for city driving.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 658 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑3, SOHC, 12‑valve | |
| Aspiration | Naturally Aspirated | |
| Bore × stroke | 64.0 mm × 68.2 mm | |
| Power output | 47 kW (64 PS) @ 7,700 rpm | |
| Torque | 60 Nm @ 6,700 rpm | |
| Fuel system | Honda PGM-FI (Programmed Fuel Injection) | |
| Emissions standard | Japan 2014 Post New Long-Term | |
| Compression ratio | 10.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | N/A | |
| Timing system | Chain-driven | |
| Oil type | Honda 0W-20 (API SN/RC) | |
| Dry weight | 78 kg |
The i-VTEC system provides a high-revving character suited 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 valve noise should receive the ECU update per Honda SB-14-041. 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 at high engine speeds.
Emissions: Meets Japan's 2014 Post New Long-Term Emissions Standards (MLIT Certification #MLIT/P07A/2014). Not certified for EU or US markets.
Power Ratings: Measured under JIS D 1001 standards. Output consistent across model range (Honda TIS Doc. P07A-A26017).
Honda Technical Information System (TIS): Docs P07A-A24682, P07A-A25144, SB-14-041
Ministry of Land, Infrastructure, Transport and Tourism (MLIT) Japan
JIS D 1001 Engine Power Certification Standards
The Honda P07A 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 P07A-A24892). The 8th VIN digit for N-Box models is 'P' for this 660cc engine family. Visually, it is identifiable by its extremely compact 3-cylinder layout and single cam cover. Critical differentiation from the S07A (turbo): P07A is naturally aspirated with no turbocharger or intercooler plumbing. ECU software is specific to the P07A and not interchangeable with turbo variants.
The P07A's primary reliability consideration is potential valve train noise, with elevated incidence in high-RPM or high-load driving. Honda internal service data indicated a small number of customer complaints regarding engine noise, while owner reports frequently cite this as a minor annoyance. The issue is resolved via a simple software update, making it a low-severity concern.
Analysis derived from Honda technical bulletins (2014-2018) and aggregated owner workshop data (2015-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about HONDA P07A.
Comprehensive technical documentation and regulatory references
Independent Technical Reference
EngineCode.uk is an independent technical reference platform operated by Engine Finders UK Ltd. We are not affiliated with HONDA or any other manufacturer. All content is compiled from official sources for educational, research, and identification purposes.
Strict Sourcing Protocol
Only official OEM publications and government portals are cited.
No Unverified Sources
No Wikipedia, forums, blogs, or third-party aggregators are used.
Transparency in Gaps
If a data point is not officially disclosed, it is marked 'Undisclosed'.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
HONDA Official Site
Owner literature, service manuals, technical releases, and plant documentation.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
Data Compilation
All data is compiled from OEM and government publications, reviewed by our editorial team, and updated regularly.
Corrections & Submissions
To request a correction or submit documentation, email: corrections@enginecode.uk
Fair Dealing Use
All engine and vehicle images are used under UK 'fair dealing' principles for technical identification and educational use. Rights remain with their respective owners.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
GDPR Compliance
EngineCode.uk complies with UK GDPR. We do not collect personal data unless explicitly provided.
Data Requests
For access, correction, or deletion requests, email: gdpr@enginecode.uk
Trademark Notice
All trademarks, logos, and engine codes are the property of their respective owners. Use on this site is strictly for reference and identification.
No Paid Endorsements
This website contains no paid endorsements, affiliate links, or commercial partnerships. We do not sell parts or services.
Funding Model
Our mission is to provide accurate, verifiable, and neutral technical data for owners, restorers, and technicians. This site is self-funded.
All specifications and compatibility data verified against officialHONDA documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .
All external links open in new tabs. Please verify current availability of resources.
