The Mazda FEFA is a 1,998 cc, inline‑four petrol engine produced between 1983 and 1991. It features a cast iron block, aluminium head, SOHC 8‑valve layout, and throttle-body fuel injection. This robust design prioritised durability and ease of maintenance for everyday use.
Fitted to models such as the 626 (GC platform), 323 (BF platform), and MX-6 (first generation), the FEFA was engineered for reliable, economical transportation. Emissions compliance for its era was achieved through basic catalytic converters and EGR systems, meeting prevailing standards.
One documented concern is premature failure of the distributor drive gear, which can cause ignition timing faults or complete engine shutdown. This issue, referenced in Mazda service documentation for the GC626, is often attributed to material wear under high thermal loads. Later FE variants introduced distributorless ignition.
Mazda
Production years 1983–1991 meet applicable emissions standards for their respective markets and model years (UK VCA Type Approval records for period).
The Mazda FEFA is a 1,998 cc inline‑four petrol engine engineered for mid‑size sedans and coupes (1983-1991). It combines throttle-body fuel injection with a simple SOHC valvetrain to deliver dependable, economical performance. Designed to meet emissions regulations of its era, it prioritises serviceability and longevity.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,998 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, SOHC, 8‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 86.0 mm × 86.0 mm | |
| Power output | 77–85 kW (105–115 PS) | |
| Torque | 162–172 Nm @ 3,500 rpm | |
| Fuel system | Throttle-body injection (TBI) | |
| Emissions standard | Prevailing national standards (e.g., US Federal, Japanese 1983) | |
| Compression ratio | 9.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Chain-driven camshaft | |
| Oil type | SAE 10W-30 or 10W-40 (API SF/CC) | |
| Dry weight | Not specified in available OEM documentation |
The SOHC design offers straightforward maintenance but delivers modest performance by modern standards. Regular valve clearance adjustments (every 30,000 km) are essential for optimal running and fuel economy. The TBI system is generally robust but requires clean fuel; using a quality fuel filter is critical. The distributor drive gear is a known wear item; listen for whining noises from the distributor area and replace proactively. Timing chain life is generally long but should be inspected if engine noise increases.
Oil Specs: Requires API SF/CC or equivalent specification (Mazda Owner's Manual GC626). Modern SM/SN oils are generally backward compatible.
Emissions: Certification applies to specific model years and markets per historical VCA/US EPA records. Standards varied significantly globally.
Power Ratings: Measured under manufacturer's internal standards of the period. Output varies slightly by model application and market (Mazda GSA).
Mazda Workshop Manual: GC626 (1983-1987)
Mazda Electronic Parts Catalogue (EPC): FE Engine Group
Mazda Global Specifications Archive (GSA): FE Series Engine Data
UK Vehicle Certification Agency (VCA) Historical Type Approval Database
The Mazda FEFA was used across Mazda's GC/BF platforms with longitudinal mounting. This engine received minor ECU and accessory drive adaptations between the 626 sedan and MX-6 coupe, creating minor parts variations. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the flat machined surface at the front of the cylinder block, near the timing cover (Mazda Workshop Manual GC626). The code will read "FE" followed by a letter (e.g., "FE-E"). Critical differentiation from later FE-DOHC: FEFA has a single camshaft cover and a distributor mounted at the rear of the head. The Ford Probe uses the same engine; identification is identical. Service parts for the distributor drive gear are specific to early FE engines.
The FEFA's primary reliability risk is distributor drive gear failure, with elevated incidence in high-mileage or poorly maintained engines. While not tracked by modern government agencies, workshop data indicates it is a frequent cause of roadside breakdowns for this generation. Neglecting valve adjustments or using incorrect oil can accelerate wear on ancillary components.
Analysis derived from Mazda workshop manuals (1983-1991) and aggregated independent workshop failure reports. Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about MAZDA FEFA.
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DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
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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
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VCA Certification Portal
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