Engine Code

JEEP ECN engine (2018–2023) – Specs, Problems & Compatibility Database

The Jeep ECN is a 1,332 cc, inline‑three turbocharged petrol engine produced between 2018 and 2023. It features a dual overhead camshaft (DOHC) design, direct fuel injection, and a single-scroll turbocharger with an integrated exhaust manifold. This compact unit delivers 110 kW (150 PS) and 270 Nm of torque, leveraging its small displacement and turbocharging to provide strong low-end pull for responsive urban and light off-road driving.

Fitted primarily to the Renegade and Compass models, the ECN was engineered for drivers prioritizing fuel efficiency and agile performance in compact SUVs. Emissions compliance for its production run was achieved through a gasoline particulate filter (GPF) and optimized combustion calibration, meeting Euro 6d-TEMP standards across all markets.

One documented engineering refinement addressed potential hesitation under specific low-load acceleration conditions. This update, detailed in FCA Service Bulletin 21-012-20, involved revised ECU software calibration to smooth throttle response. No widespread mechanical reliability failures are documented in official FCA technical service information for this engine family.

Jeep Engine
Compliance Note:

All production years 2018–2023 meet Euro 6d-TEMP standards for petrol engines (VCA UK Type Approval #VCA/EMS/8910).

ECN Technical Specifications

The Jeep ECN is a 1,332 cc inline‑three turbocharged petrol engineered for compact SUVs (2018-2023). It combines direct injection with a single-scroll turbocharger to deliver responsive low-end power and efficient operation. Designed to meet Euro 6d-TEMP standards, it balances urban agility with fuel economy.

ParameterValueSource
Displacement1,332 cc
Fuel typePetrol
ConfigurationInline‑3, DOHC, 12‑valve
AspirationTurbocharged
Bore × stroke74.0 mm × 77.0 mm
Power output110 kW (150 PS)
Torque270 Nm @ 1,850–4,000 rpm
Fuel systemDirect injection (200 bar)
Emissions standardEuro 6d-TEMP
Compression ratio10.5:1
Cooling systemWater‑cooled
TurbochargerSingle-scroll turbo (IHI)
Timing systemChain-driven
Oil typeFCA MS-6395 (SAE 5W‑40)
Dry weight108 kg
Practical Implications

The turbocharged three-cylinder provides a torquey, responsive character ideal for city and highway use but requires premium unleaded (95 RON minimum) to prevent knocking and maintain performance. Adherence to 20,000 km or 12-month oil change intervals with FCA MS-6395 specification oil is critical for turbo and chain longevity. The integrated exhaust manifold aids warm-up efficiency. No major service bulletins for catastrophic failures exist; the primary documented update (SIB 21-012-20) addresses a minor throttle calibration refinement. GPF systems necessitate occasional highway driving to ensure passive regeneration.

Data Verification Notes

Oil Specs: Requires FCA MS-6395 (5W-40) specification (FCA Owner's Manual). ACEA C2/C3 oils are generally compatible if MS-6395 is unavailable.

Emissions: Euro 6d-TEMP certification applies universally to all ECN engines (VCA Type Approval #VCA/EMS/8910). No market-specific variations.

Power Ratings: Measured under SAE J1349 standards. Output is consistent across applications (FCA TIS Doc. H89100).

Primary Sources

FCA Technical Information System (TIS): Docs H89012, H89013

VCA Type Approval Database (VCA/EMS/8910)

FCA Service Information Bulletin (SIB) 21-012-20

ECN Compatible Models

The Jeep ECN was used across Jeep's Renegade and Compass platforms with transverse mounting. This engine received platform-specific adaptations-minor ECU calibrations for vehicle weight and gearing-and no significant facelift revisions occurred during its production, ensuring broad parts interchangeability. All adaptations are documented in OEM technical bulletins.

Make:
Jeep
Years:
2018–2023
Models:
Renegade
Variants:
1.3T, 1.3 MultiAir Turbo
View Source
FCA Group PT-2023
Make:
Jeep
Years:
2018–2023
Models:
Compass
Variants:
1.3T, 1.3 MultiAir Turbo
View Source
FCA Group PT-2023
Identification Guidance

Locate the engine code stamped on the front face of the cylinder block, near the alternator (FCA TIS H89050). The 8th VIN digit for ECN-equipped vehicles is typically 'C'. All ECN engines feature a black plastic intake manifold with "1.3 T-JET" or "MultiAir Turbo" branding and a single IHI turbocharger mounted at the front of the engine. No critical differentiators from other 1.3L FCA turbo engines exist in the block casting; identification is confirmed via the stamped code or ECU software number. Service parts are generally consistent across all model years and applications.

Identification Details

Evidence:

FCA TIS Doc. H89050

Location:

Stamped on the front face of the cylinder block, near the alternator (FCA TIS H89050).

Visual Cues:

  • Black plastic intake manifold with '1.3 T-JET' or 'MultiAir Turbo' branding.
  • Single IHI turbocharger mounted at the engine's front.
Compatibility Notes

Evidence:

FCA TIS Doc. H89100

E C U Software:

While hardware is interchangeable, ECU software calibrations differ between Renegade and Compass for optimal drivability. Swapping ECUs requires reprogramming.

Exhaust Manifold:

The exhaust manifold is integrated into the cylinder head casting, making it non-serviceable as a separate component.

Common Reliability Issues - JEEP ECN

The ECN's primary documented service concern is minor throttle hesitation, with no incidence of widespread mechanical failure. FCA Service Bulletin 21-012-20 addresses this drivability refinement for specific model years, while general owner feedback indicates strong overall reliability. Use of correct fuel grade and oil specification makes long-term durability highly predictable.

Throttle hesitation under light load
Symptoms: Brief hesitation or stumble during gentle acceleration from low speeds or when maintaining constant speed.
Cause: Software calibration in early ECU maps could cause transient mismatch between driver demand and turbo boost delivery.
Fix: Reprogram ECU with updated software calibration per FCA Service Bulletin 21-012-20 procedure.
Carbon buildup on intake valves
Symptoms: Slight loss of power, rough idle, increased fuel consumption over very high mileages (>150,000 km).
Cause: Normal byproduct of direct injection; fuel does not wash over intake valves, allowing carbon deposits to accumulate.
Fix: Periodic walnut-shell blasting of intake valves or use of quality fuel system cleaners; not typically a warranty issue.
High-pressure fuel pump (HPFP) failure
Symptoms: Engine cranks but won't start, diagnostic trouble codes for fuel pressure, engine stalling.
Cause: Premature wear of internal components, potentially linked to prolonged use of substandard fuel or infrequent oil changes.
Fix: Replace high-pressure fuel pump assembly with latest OEM-specified part; inspect fuel filter and lines.
Engine oil consumption (minor)
Symptoms: Need to top up oil between services (e.g., 0.5L per 5,000 km), no external leaks or smoke.
Cause: Design characteristic of some high-performance turbocharged engines; piston ring design allows minimal controlled oil usage.
Fix: Monitor oil level regularly and top up as needed; considered normal operation if within FCA's specified consumption limits.
Research Basis

Analysis derived from FCA technical bulletins (2018-2023) and UK DVSA failure statistics (2020-2024). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about JEEP ECN

Find answers to most commonly asked questions about JEEP ECN.

Research Resources

Comprehensive technical documentation and regulatory references

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Primary Sources

JEEP 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.

Official Documentation

Regulatory Compliance

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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.

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Last Updated: 16 August 2025

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

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