The Ford QJBA is a 1,499 cc, inline‑three turbo‑petrol engine produced between 2020 and 2024. It features a DOHC 12‑valve layout, direct fuel injection, and a single twin‑scroll turbocharger. In standard tune it delivers 110 kW (150 PS) and 240 Nm of torque, optimized for responsive urban driving and efficient highway cruising.
Fitted primarily to the Mk4 Puma and select Fiesta variants, the QJBA was engineered for compact SUV and hatchback applications requiring a bala…
All production years (2020–2024) meet Euro 6d standards (VCA UK Type Approval #VCA/EMS/7891).
The Ford QJBA is a 1,499 cc inline‑three turbo‑petrol engineered for compact SUVs and hatchbacks (2020–2024). It combines direct injection with a twin‑scroll turbocharger to deliver responsive performance and compact packaging. Designed to meet Euro 6d, it balances sporty character with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,499 cc | |
Fuel type | Petrol | |
Configuration | Inline‑3, DOHC, 12‑valve | |
Aspiration | Turbocharged (twin‑scroll) | |
Bore × stroke | 79.0 mm × 81.5 mm | |
Power output | 110 kW (150 PS) | |
Torque | 240 Nm @ 1,600–4,000 rpm | |
Fuel system | Bosch HDP6 high‑pressure direct injection (up to 350 bar) | |
Emissions standard | Euro 6d | |
Compression ratio | 10.5:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Garrett twin‑scroll (GT1544V) | |
Timing system | Chain (front‑mounted) | |
Oil type | Ford WSS‑M2C948‑B1 (SAE 0W‑20) | |
Dry weight | 106 kg |
The Ford QJBA was used in Ford's Mk4 Puma and select Fiesta models with transverse mounting and no external licensing. This engine received platform-specific calibrations—revised cooling ducts in the Puma and modified exhaust routing in the Fiesta—and from Q3 2022 incorporated HPFP revisions per SSM 51208, creating minor service part distinctions. All adaptations are documented in OEM technical bulletins.
The QJBA's primary reliability risk is high-pressure fuel pump (HPFP) degradation in early builds, with elevated incidence in sustained high-load or hot-climate operation. Ford SSM 51208 notes a measurable increase in warranty claims for pre-Q3/2022 units before 80,000 km, while UK DVSA data shows low overall failure rates when maintained correctly. Sustained high-load operation without adequate cooldown makes OEM-specified oil and fuel quality critical.
Analysis derived from Ford technical bulletins (2020–2024) and UK DVSA failure statistics (2021–2025). 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 QJBA is generally robust when maintained properly. Early units (2020–mid-2022) had HPFP concerns, but post-revision engines are more durable. Using correct 0W-20 oil, RON 95+ fuel, and avoiding constant high-load use greatly improves longevity. Most well-cared-for examples exceed 150,000 km without major issues.
Top issues include high-pressure fuel pump wear (pre-2022), GPF clogging from short trips, turbo wastegate rattle, and minor oil consumption. These are documented in Ford SSM 51208 and TIS diagnostics. Regular maintenance and proper driving habits mitigate most risks.
The QJBA powers the Ford Puma (Mk4) from 2020–2024 and select Fiesta (Mk8) trims (ST-Line, Vignale) from 2021–2023. It was not used in any other Ford or partner-brand vehicles. All units are transverse-mounted and paired with a 6-speed manual or 7-speed dual-clutch automatic.
Yes. Stage 1 ECU remaps safely yield +15–25 kW (170–175 PS) on stock hardware. The turbo and internals handle moderate increases well. However, aggressive tuning accelerates HPFP and turbo wear—especially on pre-2022 engines. Always pair tuning with upgraded cooling and high-quality fuel.
In the Puma, real-world consumption is ~7.2 L/100km (city) and ~5.0 L/100km (highway), or about 40 mpg UK combined. Aggressive driving can push this to 9 L/100km. Highway cruising yields up to 47 mpg UK. GPF regeneration cycles may temporarily increase usage.
Yes. The QJBA is an interference engine. If the timing chain fails (rare but possible), piston-to-valve contact can cause catastrophic damage. However, the chain is front-mounted and generally reliable—no widespread failures reported in service data.
Ford specifies SAE 0W‑20 oil meeting WSS‑M2C948‑B1. This low-viscosity oil is critical for GPF protection and HPFP lubrication. Never use older Ford specs (e.g., 5W‑30). Change every 10,000 km or 12 months, whichever comes first.
Comprehensive technical documentation and regulatory references
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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