The Mazda PY — ZA is a 1,998 cc, inline — four petrol engine produced between 2014 and 2020. It features direct injection, variable valve timing (VVT), and a high compression ratio of 13.0:1, delivering responsive power and improved fuel efficiency. The cylinder head design enables efficient combustion for strong low — to — mid — range torque suitable for everyday driving.
Fitted to models such as the Mazda 3 (BM/BN), Mazda 6 (GJ/GK), and CX — 5 (BL/BM), the PY — ZA was engineere…
Mazda
Production years 2014–2020 meet Euro 6 standards; no earlier emissions standard applies .
The Mazda PY-ZA is a 1,998 cc inline-four naturally aspirated petrol engine engineered for compact and mid-size models (2014-2020). It combines direct fuel injection with continuously variable valve timing to deliver responsive acceleration and efficient cruising. Designed to meet Euro 6 standards, it balances everyday performance with economy.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,998 cc | |
Fuel type | Petrol | |
Configuration | Inline-4, DOHC, 16-valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 83.5 mm × 91.2 mm | |
Power output | 115–132 kW (156–180 PS) | |
Torque | 200–213 Nm @ 4,000 rpm | |
Fuel system | Direct Injection (DISI) | |
Emissions standard | Euro 6 | |
Compression ratio | 13.0:1 | |
Cooling system | Water-cooled | |
Turbocharger | None | |
Timing system | Chain | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 145 kg |
The Mazda PY-ZA was used across Mazda's B-series platforms with transverse mounting and no licensed external usage. This engine received platform-specific adaptations—revised intake manifold geometry in the CX-5 and updated ECU calibration in the Mazda 6—and from 2017 the facelifted Mazda 3 adopted the upgraded PY-ZA variant with revised valve lift profiles, creating interchange limits. All adaptations are documented in OEM technical bulletins.
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Field reports and technical service bulletins highlight component wear patterns under high-load operation. Adherence to manufacturer service intervals and approved fluid specifications is critical for long-term reliability.
Analysis derived from manufacturer technical service bulletins and industry workshop records. Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
The PY-ZA delivers smooth power and good efficiency, but early models (2014–2017) are prone to intake valve carbon buildup, which can cause misfires and rough idle if neglected. Later revisions improved ECU strategies slightly, but carbon remains the primary concern. Regular induction cleaning every 40,000–60,000 km and strict use of Mazda Genuine 0W-20 oil greatly enhance longevity and performance.
The biggest issues are intake valve carbon buildup causing misfires, ignition coil failure under heat stress, throttle body carbon accumulation, and degraded PCV system components leading to oil leaks. These are well-documented in Mazda service bulletins, particularly SIB 07-007-18 for carbon management.
This 2.0L petrol engine was used across Mazda's core lineup from 2014–2020, appearing in the Mazda 3 (BM/BN), Mazda 6 (GJ/GK), and CX-5 (BL/BM), all badged as 2.0 Skyactiv-G. It replaced the earlier PY-ZB and was succeeded by the newer SKYACTIV-G 2.5. No other manufacturers used this specific engine variant.
Aftermarket ECU tuning is common on the PY-ZA platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
Excellent. In a Mazda 3 or CX-5, typical consumption is ~6.5 L/100km (city) and ~5.0 L/100km (highway), or about 56 mpg UK combined. Real-world figures depend on driving style, but expect 50–60 mpg (UK) on mixed roads for a healthy PY-ZA with clean intake valves and proper maintenance.
Yes. The PY-ZA is an interference engine. If the timing chain fails or jumps, pistons can strike open valves, resulting in severe internal damage. While chain failure is rare under maintenance, any unusual noise from the timing area demands immediate inspection.
Mazda specifies Mazda Genuine 0W-20 synthetic oil meeting API SN or ILSAC GF-5 standards. Always use this exact spec and change it every 10,000 km or annually to minimize carbon formation and ensure optimal lubrication of the high-pressure valve train.
Comprehensive technical documentation and regulatory references
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Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
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.
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