The Mazda F2-EGI is a 1,998 cc, inline‑six naturally aspirated petrol engine produced between 1988 and 1993. It features a cast iron block, aluminium head, and a single overhead camshaft (SOHC) valvetrain with 12 valves. Output ranged from 77 kW (105 PS) to 85 kW (115 PS), with torque figures around 157–162 Nm, providing smooth, linear power delivery ideal for larger sedans and coupes.
Fitted to models such as the 626 (GC), MX-6, and Capella, the F2-EGI was engineered for longitudinal, rear-wheel-drive or front-wheel-drive applications. It offered drivers a blend of refinement and low-end torque, particularly suited for comfortable cruising. Emissions compliance for its era was managed through electronic fuel injection (EGI) and exhaust gas recirculation (EGR), meeting Japanese 1983 regulations.
One documented concern is premature wear of the distributor drive gear, which can lead to ignition timing faults and engine misfires. This issue, highlighted in Mazda Service Bulletin 01-002/89, is often attributed to material fatigue under sustained high-RPM operation. Later production runs utilized revised, hardened components to mitigate this failure mode.
Mazda
Production years 1988–1993 meet applicable Japanese 1983 emissions standards for their respective model years and markets (MLIT Japan Type Approval).
The Mazda F2-EGI is a 1,998 cc inline‑six naturally aspirated petrol engine engineered for mid-size sedans and coupes (1988-1993). It combines electronic fuel injection with an SOHC 12-valve head to deliver smooth, linear power delivery. Designed to meet Japanese 1983 emissions standards, it balances refinement with mechanical simplicity.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,998 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑6, SOHC, 12-valve | |
| Aspiration | Naturally Aspirated | |
| Bore × stroke | 78.0 mm × 70.0 mm | |
| Power output | 77–85 kW (105–115 PS) | |
| Torque | 157–162 Nm @ 3,500–4,000 rpm | |
| Fuel system | Electronic Fuel Injection (EGI) | |
| Emissions standard | Japanese 1983 Regulations | |
| Compression ratio | 9.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Belt-driven camshaft | |
| Oil type | SAE 10W-30 / 10W-40 | |
| Dry weight | 140 kg (approx.) |
The inline-six configuration provides exceptional smoothness and low-end torque, ideal for relaxed highway cruising but requires strict 60,000 km timing belt replacement intervals to prevent catastrophic interference engine damage. Using the correct viscosity oil (10W-30/40) is critical for maintaining hydraulic lifter function. The EGI system is generally robust but sensitive to poor electrical grounds; cleaning the ECU and sensor grounds is a common troubleshooting step. Distributor gear wear on early engines necessitates inspection during major services per Mazda SB 01-002/89.
Oil Specs: Requires SAE 10W-30 or 10W-40 mineral or semi-synthetic oil (Mazda Owner's Manual 1990). API SF/CC or equivalent.
Emissions: Japanese 1983 emissions certification applies to all production years (MLIT Japan Type Approval). No Euro standards were applicable.
Power Ratings: Measured under JIS D 1001 standards. Figures vary by specific model application and market (Mazda Technical Data Book 1990).
Mazda Workshop Manual (JM2 GC Series, 1988)
Mazda Technical Data Book (1990)
Mazda Service Bulletin 01-002/89
MLIT Japan Type Approval Database
The Mazda F2-EGI was used across Mazda's GC platform with longitudinal mounting. This engine received platform-specific adaptations-unique engine mounts for the MX-6-creating minor interchange considerations. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the flat boss on the left side of the engine block, near the rear of the cylinder head (Mazda WSM JM2 GC). The 8th VIN digit often corresponds to the engine type. Visually, the F2 is an inline-six with a long, single cam cover running the length of the head. Critical differentiation: The F2-EGI features electronic fuel injection, distinguishable from carbureted F2 variants by the presence of fuel injectors and an ECU. Service parts like the distributor are specific to the EGI variant.
The F2-EGI's primary reliability risk is timing belt failure due to its interference design, with neglect being the main cause. Mazda service documentation mandates replacement at 60,000 km, while owner club data shows a high correlation between skipped services and engine damage. Infrequent use and extended oil change intervals accelerate wear on hydraulic lifters and the distributor drive gear, making adherence to the maintenance schedule critical.
Analysis derived from Mazda technical bulletins (1988-1993) and aggregated owner club maintenance data (1995-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about MAZDA F2EGI.
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