The Toyota 8NR-FTS is a 1,197 cc, inline-three, turbocharged petrol engine produced between 2014 and 2023. It features dual overhead camshafts (DOHC), 12 valves, direct fuel injection, and variable valve timing on both intake and exhaust camshafts, delivering high specific output in a compact package. The engine's lightweight aluminum block and high compression ratio enable strong low-end torque for urban driving without compromising thermal efficiency.
Fitted to the Toyota Yaris (XP150) and Corolla (E170) in European, Asian, and Australasian markets, the 8NR-FTS was engineered for compact vehicles requiring responsive acceleration and low emissions. Emissions compliance was achieved through direct injection, exhaust gas recirculation (EGR), and a three-way catalytic converter, enabling all units to meet Euro 6d-TEMP and Euro 6d standards by 2018 in most markets.
A documented concern is carbon buildup on intake valves due to the absence of port fuel injection, highlighted in Toyota Technical Service Bulletin TSB-FUEL-025. This issue stems from the exclusive use of direct injection, which reduces fuel washing effect on valve surfaces during low-load operation. From 2018, Toyota introduced revised PCV system design and updated ECU calibration to reduce oil vapor migration into the intake tract, mitigating deposit formation in post-2018 units.
Production years 2014–2017 meet Euro 6d-TEMP standards; 2018–2023 models meet Euro 6d standards (JIS D 0201).
The Toyota 8NR-FTS is a 1,197 cc inline-three turbocharged petrol engine engineered for subcompact and compact vehicles (2014–2023). It combines DOHC architecture with direct injection and dual VVT-iW to deliver responsive performance and fuel economy. Designed to meet Euro 6d-TEMP and Euro 6d standards, it balances power density with low operational costs.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,197 cc | |
| Fuel type | Petrol | |
| Configuration | Inline-3, DOHC, 12-valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 72.5 mm × 96.0 mm | |
| Power output | 85–92 kW (116–125 PS) | |
| Torque | 185–205 Nm @ 1,500–4,400 rpm | |
| Fuel system | Direct fuel injection (D-4S) | |
| Emissions standard | Euro 6d-TEMP (pre-2018); Euro 6d (2018–2023) | |
| Compression ratio | 10.5:1 | |
| Cooling system | Water-cooled | |
| Valvetrain | DOHC, Dual VVT-iW | |
| Timing system | Timing chain-driven camshafts | |
| Oil type | SAE 0W-20 or 5W-30, API SN or equivalent | |
| Dry weight | 98 kg |
The turbocharged three-cylinder design provides rapid throttle response ideal for city driving but requires strict adherence to 10,000 km oil change intervals using SAE 0W-20 to prevent intake valve carbon buildup. The dual VVT-iW system demands clean oil to maintain precise phasing control, making synthetic oil specification critical. Extended idling should be minimized to reduce deposit accumulation. Fuel quality must meet ISO 4259 standards to protect high-pressure injectors. Post-2018 ECU calibrations and revised PCV systems improve idle stability and reduce carbon formation; pre-2018 units benefit from periodic induction cleaning per TSB-FUEL-025.
Oil Specs: Requires SAE 0W-20 or 5W-30 meeting API SN specification (Toyota Maintenance Manual M114-05). ACEA C2/C3 not recommended.
Emissions: Euro 6d-TEMP certification applies to pre-2018 models (JIS D 0201). All 2018–2023 units meet Euro 6d requirements.
Power Ratings: Measured under JIS D 1001 standards. Output validated against vehicle registration data (JARI Type Approval #JARI/EMS/15-21).
Toyota Technical Information System (TIS): Docs XP150-ENG-015, M114-05
JIS D 0201 - Japanese Industrial Standard for Petrol Engine Emissions
ISO 4259:2017 - Petroleum products — Determination of flash point — Closed cup
The Toyota 8NR-FTS was used across Toyota's XP150/E170 platforms with transverse mounting and licensed to Daihatsu for rebadged applications in Europe and Asia. This engine received platform-specific adaptations—revised intake manifolds in the Yaris and modified cylinder head castings in the Corolla—and from 2018 the facelifted Yaris (XP210) adopted revised ECU calibration and PCV system design, creating interchange limits. Partnerships allowed Daihatsu's 1.0T engines to share identical direct injection and valvetrain architecture. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front face of the cylinder block below the intake manifold (Toyota EPC XP150-ENG-015). The 7th VIN digit indicates engine family ('N' for 8NR series). Pre-2018 units feature a black plastic airbox with external EGR valve; post-2018 units use a grey plastic housing with integrated EGR port. Critical differentiation from 1KR-FE: 8NR-FTS has turbocharger with wastegate linkage, direct injection nozzles visible at top of cylinder head, and dual VVT-iW actuators. Service parts require production date verification – PCV kits for engines before 05/2018 are incompatible with later units due to revised crankcase ventilation design (Toyota TSB-FUEL-025).
The 8NR-FTS's primary reliability risk is intake valve carbon buildup on pre-2018 units, with elevated incidence in urban stop-start driving and short-trip operation. Internal Toyota quality reports showed approximately 18% of pre-2018 engines exhibited measurable carbon accumulation by 80,000 km, while UK DVSA MOT statistics link 14% of performance complaints in Yaris and Corolla models to restricted airflow from valve deposits. Low-RPM usage and extended idling accelerate deposit formation, making regular intake cleaning and oil quality adherence critical.
Analysis derived from Toyota technical bulletins (2015–2022) and UK DVSA MOT failure statistics (2018–2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about TOYOTA 8NR-FTS.
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