The 1991 Honda Accord EX uses a 2.2-liter inline-four engine.
In this article, we break down the engine that powered the 1991 Accord EX, including its basic specs, typical performance ranges, and what owners should know about maintenance and parts compatibility. The North American EX trim from this era relied on a 2.2 L four-cylinder with Honda’s MPFI system, and was offered with either a manual or an automatic transmission.
Engine specifications
Below are the core figures and features for the 2.2-liter engine that equipped the 1991 Accord EX. This overview reflects common configurations for the North American market; exact figures can vary by region and transmission.
Core figures
- Displacement: 2.2 liters (approximately 2199 cc)
- Configuration: Inline-4
- Engine family: F-series (often referred to in this generation as the 2.2L family used in Accords)
- Induction: Naturally aspirated with multi-point fuel injection (MPFI)
- Power output: About 125 horsepower, with torque around 139 lb-ft; exact figures vary by market and transmission
- Valvetrain: Engine is part of the 2.2L family used in early 1990s Accords; specifics can vary by submodel
- Fuel system: MPFI
- Emissions/ECU: OBD-I on North American models
- Transmission options for EX: 5-speed manual or 4-speed automatic
These specifications reflect the typical North American configuration for the 1991 Accord EX, with regional variations possible.
Maintenance and parts compatibility
Understanding maintenance needs and parts availability helps keep the 2.2-liter engine performing well. The following items cover common care considerations and where parts commonly come from.
Maintenance essentials
- Oil and filter: Use Honda-recommended motor oil for the era (typically 5W-30); approximate capacity is around 4.5 quarts with filter, depending on the exact engine and oil pan configuration
- Cooling system: Use the manufacturer-recommended coolant; inspect hoses and radiator for wear and leaks regularly
- Timing components: The 2.2L engine uses a timing belt/associated components; check the owner’s manual or a trusted mechanic for replacement intervals and signs of wear
- Fuel system: Use reputable fuel injectors and consider periodic injector cleaning to preserve performance
- Spark plugs: Replace with OEM-equivalent plugs appropriate to the engine specification of the era; follow gap recommendations from the service manual
- Air and vacuum systems: Replace the air filter regularly and inspect intake hoses for cracks or leaks
- Parts availability: Honda aftermarket and dealer networks offer widespread parts support for the 2.2L engine; many components are shared with other 1990s Accord models
- Service intervals: Adhere to the owner’s manual or a certified shop’s maintenance schedule for timing, fluids, and inspections
By following these guidelines and using quality OEM or reputable aftermarket parts, owners can maintain reliability and performance for the 2.2L engine in the 1991 Accord EX.
Summary
In short, the 1991 Honda Accord EX is powered by a 2.2-liter inline-four engine from Honda’s 2.2L F-series family, paired with MPFI and offered with both manual and automatic transmissions. While exact figures can vary by market and trim, the engine is commonly described as producing around 125 hp with torque near 139 lb-ft. Maintenance and parts for this engine are widely available, making the 1991 Accord EX a relatively straightforward classic for owners and restorers alike.