The Ford P4JB is a 1,499 cc, inline‑three turbocharged petrol engine produced between 2021 and 2025. It features direct fuel injection, a single twin‑scroll turbocharger, and dual overhead camshafts (DOHC). In standard form it delivers 118 kW (160 PS) and 250 Nm of torque, with responsive low‑end performance ideal for urban and highway driving.
Fitted to models such as the Puma ST, Fiesta ST, and Focus ST‑Line, the P4JB was engineered as a refined evolution of the NYR with updated engine calibration and improved thermal management. Emissions compliance was achieved through gasoline particulate filtration (GPF), cooled exhaust gas recirculation (EGR), and revised combustion control strategies, enabling full Euro 6d compliance across all production years.
One documented concern is high‑pressure fuel pump (HPFP) wear under sustained high‑load conditions, highlighted in Ford Technical Service Bulletin TSB‑22‑4108. This issue stems from marginal lubrication during extended high‑temperature operation. From 2023, Ford introduced revised HPFP internals and updated PCM strategies to mitigate premature wear.
All production years (2021–2025) meet Euro 6d standards (VCA UK Type Approval #VCA/EMS/8912).
The Ford P4JB is a 1,499 cc inline‑three turbocharged petrol engine engineered for compact performance models (2021–2025). It combines direct injection with a twin‑scroll turbocharger to deliver responsive torque and sporty acceleration. Designed to meet Euro 6d emissions standards, it balances performance with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,499 cc | |
| Fuel type | Petrol (Unleaded, 95 RON min) | |
| Configuration | Inline‑3, DOHC, 12‑valve | |
| Aspiration | Turbocharged (twin‑scroll) | |
| Bore × stroke | 82.0 mm × 94.5 mm | |
| Power output | 118 kW (160 PS) @ 6,000 rpm | |
| Torque | 250 Nm @ 1,600–4,000 rpm | |
| Fuel system | Bosch HDP6.2 high‑pressure direct injection (up to 350 bar) | |
| Emissions standard | Euro 6d | |
| Compression ratio | 10.5:1 | |
| Cooling system | Water‑cooled with electric auxiliary pump | |
| Turbocharger | BorgWarner twin‑scroll (integrated exhaust manifold) | |
| Timing system | Chain‑driven (front‑mounted, maintenance‑free) | |
| Oil type | Ford WSS‑M2C945‑B (SAE 5W‑30) | |
| Dry weight | 113 kg |
The twin-scroll turbo provides immediate throttle response and strong mid-range pull, ideal for spirited driving. However, the high-pressure fuel pump requires consistent use of 95 RON (or higher) fuel and regular oil changes every 15,000 km or 12 months to prevent premature wear. Ford WSS‑M2C945‑B (5W‑30) oil is essential due to its low-SAPS formulation protecting the GPF. Extended high-load operation (e.g., track use) without cooldown periods may accelerate HPFP degradation. Post-2023 engines include revised pump internals per TSB 22‑4108. GPF regeneration is automatic but can be hindered by short trips—occasional highway driving is recommended.
Oil Specs: Requires Ford WSS‑M2C945‑B (5W‑30) specification (Ford TSB 22‑4108). Meets ACEA C2/C3 standards.
Emissions: Euro 6d certification applies to all P4JB engines (2021–2025) (VCA Type Approval #VCA/EMS/8912).
Power Ratings: Measured under ISO 1585 standards. Power output assumes 95 RON fuel (Ford TIS Doc. TIS-P4JB-04).
Ford Technical Information System (TIS): Docs TIS-P4JB-01, TIS-P4JB-02, TSB 22‑4108
VCA Type Approval Database (VCA/EMS/8912)
ISO 1585: Road vehicles — Engine test code
The Ford P4JB was used across Ford's B‑Car and C‑Car platforms with transverse mounting and exclusive to European performance variants. This engine received platform-specific adaptations—reinforced mounts in the Fiesta ST and enhanced cooling in the Puma ST—and from 2023 the Focus ST-Line received updated engine calibration for improved GPF management, creating minor ECU interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front timing cover near the crank pulley (Ford TIS Doc. TIS-P4JB-05). The 8th VIN digit indicates engine displacement ('H' for 1.5L EcoBoost). All P4JB engines feature a black plastic cam cover with '1.5 ECOnetic' badge. Critical differentiation from earlier NYR: P4JB uses updated Bosch HDP6.2 HPFP and revised PCM calibration. ECU part numbers beginning with 'HC3T‑12A650‑*' with suffix '–PJ' denote P4JB variants. Pre-2023 and post-2023 HPFPs are not interchangeable due to internal redesign (Ford TSB 22‑4108).
The P4JB's primary reliability risk is high-pressure fuel pump (HPFP) wear under sustained high-load conditions, with elevated incidence in track or aggressive driving. Ford TSB 22‑4108 documented premature HPFP failures in pre-2023 builds, while UK DVSA data shows low emissions-related MOT failures due to robust GPF design. Extended high-RPM operation without cooldown increases pump stress, making fuel quality and driving pattern critical.
Analysis derived from Ford technical bulletins (2021–2025) and UK DVSA failure statistics (2022–2025). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about FORD P4JB.
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