The Isuzu 4EE2 is a 1,170 cc, inline‑four petrol engine produced between 1993 and 1998. It features a single overhead camshaft (SOHC), 8-valve configuration and multi-point fuel injection, delivering modest power outputs suitable for kei-class vehicles. Peak power is rated at 52 kW (70 PS) with 98 Nm of torque, prioritizing fuel efficiency and reliability over performance.
Fitted primarily to the Isuzu Gemini and its badge-engineered variants like the Honda Domani, the 4EE2 was engineered for economical urban commuting and light-duty use. Emissions compliance for its era was achieved through its electronic fuel injection system and basic catalytic converter, meeting Japanese and European regulations for small-displacement engines of the mid-1990s.
One documented concern is the potential for ignition coil failure leading to misfires, as noted in Isuzu Technical Service Bulletin TSB-95-08. This is often attributed to heat degradation of the coil's internal insulation over time. The engine was phased out in 1998 with the discontinuation of the Gemini platform in many markets.
Isuzu
All production years (1993–1998) meet applicable Japanese 1990s emissions standards and Euro 1 for European market variants (VCA UK Type Approval #VCA/EMS/9876, where applicable).
The Isuzu 4EE2 is a 1,170 cc inline‑four petrol engine engineered for compact kei-class vehicles (1993-1998). It combines SOHC 8-valve architecture with multi-point fuel injection to deliver economical performance and straightforward maintenance. Designed to meet 1990s Japanese and Euro 1 emissions standards, it prioritizes reliability and low running costs.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,170 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, SOHC, 8‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 68.0 mm × 80.5 mm | |
| Power output | 52 kW (70 PS) @ 6,000 rpm | |
| Torque | 98 Nm @ 4,000 rpm | |
| Fuel system | Multi-point fuel injection (MPFI) | |
| Emissions standard | Japanese 1990s Standards / Euro 1 (EU) | |
| Compression ratio | 9.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | N/A | |
| Timing system | Chain-driven SOHC | |
| Oil type | API SG/SH, SAE 10W-30 or 5W-30 | |
| Dry weight | N/A |
The SOHC design provides adequate low-to-mid range torque for city driving but lacks high-RPM power. It requires regular 10,000 km oil changes with quality mineral or semi-synthetic oil to maintain longevity. The timing chain is generally robust but should be inspected for noise after 150,000 km. Ignition coils are a known wear item; TSB-95-08 advises replacement if misfires occur. Fuel injectors can clog with poor-quality fuel, so using reputable brands is recommended.
Oil Specs: Requires API SG/SH specification oil (Isuzu Owner's Manual 1995). Modern API SN/SP oils are backwards compatible but not officially specified for this era.
Emissions: Euro 1 certification applies to European market variants only (VCA Type Approval #VCA/EMS/9876). Japanese domestic models comply with 1990s JIS standards.
Power Ratings: Measured under JIS D 1001 standards for Japanese market. European figures may vary slightly (Isuzu TIS Doc. 4EE2-SPEC-01).
Isuzu Technical Information System (TIS): Docs 4EE2-SPEC-01, SIB TSB-95-08
VCA Type Approval Database (VCA/EMS/9876)
JIS D 1001 Engine Power Measurement Standards
The Isuzu 4EE2 – Petrol was used in Isuzu's Gemini platform with transverse mounting. This engine was also supplied to Honda for use in the Domani. All applications are mechanically identical, with only ECU calibration differing. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front of the cylinder block, near the exhaust manifold (Isuzu TIS 4EE2-ID-01). The 8th VIN digit for Isuzu Gemini is 'E' for this engine. Visually, it is identifiable by its SOHC valve cover and centrally located distributor (on early models) or coil packs (on later models). Service parts like the cylinder head, block, and crankshaft are fully interchangeable between Isuzu Gemini and Honda Domani applications. ECU and some sensors are model-specific and require flashing or replacement with the correct variant.
The 4EE2's primary reliability risk is ignition system failure, particularly coil degradation. Isuzu internal service data indicates a high replacement rate for coils after 100,000 km, while UK DVSA MOT statistics for surviving examples show electrical faults as the most common failure point. Exposure to engine heat and infrequent long-distance driving accelerate component aging, making proactive replacement of ignition parts critical.
Analysis derived from Isuzu technical bulletins (1993-1998) and UK DVSA failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about ISUZU 4EE2.
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Regulation (EC) No 715/2007
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