A 1.5-liter inline-four from Honda's D-series family powers the 1991 Civic DX, most commonly the D15B2 variant in U.S. market cars. It is a non-VTEC, single-overhead cam engine with MPFI.
The 1991 Civic DX sits in the early-EF era of Civics, where the D-series engines were standard for efficiency and reliability. While the core specification is a 1.5L SOHC four with electronic fuel injection, the exact engine code can vary by market, and some regional models used slight variants of the same family.
Engine type and specifications
Before listing the core details, here is a concise overview of what you can expect from the 1991 Civic DX's powertrain in most North American examples.
- Engine family: Honda D-series
- Engine displacement: 1.5 liters
- Configuration: Inline-4, single overhead camshaft (SOHC)
- Fuel system: Multi-point fuel injection (MPFI)
- Common US engine code: D15B2 (non-VTEC)
- Power estimate: roughly 90–95 horsepower, depending on market and emission controls
- Transmission options: 5-speed manual or 4-speed automatic, depending on trim and market
In summary, the 1991 Civic DX uses a 1.5-liter D-series engine with MPFI and a non-VTEC, SOHC configuration, paired with standard transmission options available on base models of that year.
Market variations and notes
While the core layout remains the same, some markets featured minor variations in tuning, emissions equipment, or specific D-series sub-variants. The Si and other higher trims used different engines (notably VTEC variants like the B-series), but the DX remained anchored to the 1.5L D-series family.
For restorers and buyers, verifying the exact engine code on the engine block or VIN/build sheet helps confirm the precise variant and compatible parts, even within the DX lineup of that year.
Summary
The 1991 Honda Civic DX is powered by a 1.5-liter inline-4 from Honda's D-series family, typically the D15B2 in U.S. models. It is a non-VTEC, SOHC engine with MPFI, offered with either a 5-speed manual or a 4-speed automatic transmission, and it represents the standard, efficiency-focused powertrain of that era.