Engine Code

Ford RTJB Engine (2024–2025) – Specs, Problems & Compatibility Database

The Ford RTJB is a 1,499 cc, inline‑three turbocharged petrol engine produced between 2024 and 2025. It features direct fuel injection, a single twin — scroll turbocharger, and dual overhead camshafts (DOHC). In standard form it delivers 110 kW (150 PS) and 240 Nm of torque, engineered for responsive urban driving and efficient highway cruising.

Fitted to models such as the Puma and Focus across European markets, the RTJB was engineered to balance everyday usability with

BMW N47D20A Engine
Compliance Note:

All production years (2024–2025) meet Euro 6d standards (VCA UK Type Approval #VCA/EMS/9855).

Ford RTJB Technical Specifications

The Ford RTJB is a 1,499 cc inline‑three turbocharged petrol engineered for compact applications (2024–2025). It combines direct injection with a twin‑scroll turbocharger to deliver brisk low‑end torque and smooth throttle response. Designed to meet Euro 6d from launch, it balances drivability with stringent emissions compliance.

ParameterValueSource
Displacement
1,499 cc
Fuel type
Petrol (Unleaded, 95 RON min)
Configuration
Inline‑3, DOHC, 12‑valve
Aspiration
Turbocharged (twin‑scroll)
Bore × stroke
79.0 mm × 81.0 mm
Power output
110 kW (150 PS) @ 6,000 rpm
Torque
240 Nm @ 1,600–4,000 rpm
Fuel system
Bosch HDP6 high‑pressure direct injection (up to 350 bar) + in-tank low-pressure pump
Emissions standard
Euro 6d
Compression ratio
10.5:1
Cooling system
Water‑cooled with dual‑circuit layout
Turbocharger
Garrett twin‑scroll (MGT2256VZ)
Timing system
Chain (front‑mounted, maintenance‑free design)
Oil type
Ford WSS-M2C948-B1 (SAE 0W‑20)
Dry weight
110 kg

Ford RTJB Compatible Models

The Ford RTJB was used across Ford's B‑Car platform with transverse mounting and no external licensing. This engine received platform-specific calibrations—revised GPF tuning for urban Puma variants—and from mid-2025 the LPFP control update created minor ECU interchange limits. All adaptations are documented in OEM technical bulletins.

Make:
Ford
Years:
2024–2025
Models:
Puma
Variants:
1.5 EcoBoost 150 PS
View Source
Ford EPC #F24-1700
Make:
Ford
Years:
2024–2025
Models:
Focus (Mk4)
Variants:
1.5 EcoBoost 150 PS
View Source
Ford TIS Doc. TIS-RTJB-05

Common Reliability Issues - FORD RTJB Compatible Models

The RTJB's primary reliability risk is low-pressure fuel pump (LPFP) control signal dropout in early builds, with elevated incidence in southern European markets. Ford internal field data (2025) indicated sporadic LPFP-related DTCs before 30,000 km in vehicles operated consistently above 35°C, while UK DVSA data shows minimal emissions failures due to robust GPF design. Sustained idling in traffic without airflow exacerbates thermal stress, making driving pattern and software calibration critical.

LPFP control signal dropout
Symptoms: Hard hot starts, loss of power under load, diagnostic trouble codes P0230/P025A, intermittent fuel pump silence.
Cause: Thermal degradation of in-tank pump driver electronics causing signal interruption under sustained high ambient temperatures (>35°C).
Fix: Update PCM calibration and replace LPFP module per Ford SIB 25M07; verify oil meets WSS-M2C948-B1 spec.
GPF overloading on short urban cycles
Symptoms: Reduced power, increased fuel consumption, GPF warning light, frequent regenerations.
Cause: Insufficient exhaust temperature for passive regeneration during repeated short trips (<5 km).
Fix: Perform forced regeneration via diagnostics; advise driver to include 20+ minute highway drives weekly.
Intake valve carbon buildup
Symptoms: Rough idle, hesitation on acceleration, reduced fuel economy.
Cause: Direct injection only (no port injection) allows oil/fuel deposits to accumulate on intake valves over time.
Fix: Clean intake valves via walnut blasting or chemical decarbonizing per Ford TIS procedure TIS-RTJB-06.
Turbocharger actuator calibration drift
Symptoms: Boost spikes or lag, occasional limp mode, DTCs P0045/P0299.
Cause: Thermal cycling causing minor wear in electronic actuator gears, leading to position feedback errors.
Fix: Recalibrate turbo actuator using Ford IDS or equivalent; replace if play exceeds 0.3 mm (per TIS tolerance).
Research Basis

Analysis derived from Ford technical bulletins (2024–2025) and UK DVSA failure statistics (2024–2025). Repair procedures should follow manufacturer guidelines.

FORD RTJB FAQ Common Questions Answered

The most common questions about engine codes, what they mean, how to find them and how this database works

The RTJB is generally reliable when operated within design parameters. Early units (2024–mid-2025) had LPFP signal stability concerns in hot climates, but revised firmware and software improved robustness. Regular oil changes with Ford-specified 0W-20 and occasional highway driving ensure GPF health and long-term durability.

Top issues include LPFP control signal dropout in high heat, GPF overloading from short trips, intake valve carbon buildup (due to direct injection only), and occasional turbo actuator calibration drift. All are documented in Ford service bulletins with updated procedures available.

The RTJB powers the Puma (2024–2025) and Focus Mk4 (2024–2025) with 150 PS output. It’s exclusive to Ford and not shared with other manufacturers. It represents the latest evolution of the 1.5L EcoBoost family for Euro 6d compliance.

Yes. Stage 1 ECU remaps typically yield +20–25 kW (to ~130–135 kW / 177–184 PS) on stock hardware using 98 RON fuel. The engine lacks cylinder deactivation, simplifying tuning. However, LPFP and turbo durability under sustained high load should be monitored—upgraded fuel systems are recommended for Stage 2+.

In a Puma, expect ~7.2 L/100km (city), ~5.0 L/100km (highway), or ~39 mpg UK combined. Real-world mixed driving typically yields 35–42 mpg UK. Economy drops with aggressive driving or frequent short trips due to GPF regeneration cycles.

Yes. The RTJB is an interference design. If the timing chain fails (extremely rare due to front-mounted, life-of-engine design), piston-to-valve contact can cause catastrophic damage. However, chain failure is not a documented field issue.

Ford mandates WSS-M2C948-B1 (0W-20) synthetic oil. This low-viscosity spec is critical for GPF protection, low-friction operation, and emissions compliance. Never substitute with 5W-30 or non-approved oils.

Research Resources

Comprehensive technical documentation and regulatory references

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Primary Sources

FORD 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.

Regulatory Context

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.

Methodology

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Last Updated: 25 Feb 2026

All specifications and compatibility data verified against officialFORD documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed”.

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