The 1.5 L 3A was produced from 1979 through 1989. The 3A engine is the successor of Toyota's first A engine, the 1A. All variants were belt-driven eight-valve counter-flow SOHC engines.
71 PS (52 kW) at 5,600 rpm and 108 Nm at 3,800 rpm (compression at 9.0:1, EU spec)
AL12 Tercel 1979–1982 (excluding Japan)
AL21/25 Tercel 1982–1988 (excluding Japan)
Using Toyota TTC-C catalytic converter. On some models marked as 3A-II.
83.5 PS (61 kW) at 5,600 rpm and 118 Nm at 3,600 rpm (compression at 9.0:1)
AA60 Carina 1981–1987 (Japan only)
AT150 Carina 1984–1988 (Japan only)
AE70 Corolla 1979–1983 (Japan only)
AE81/85 Corolla 1983–1987 (Japan only)
AL21 Corolla II 1982–1986 (Japan only)
AT140 Corona 1982–1987 (Japan only)
AT150 Corona 1983–1987 (Japan only)
AL12 Corsa (Japan only)
AL21/25 Corsa 1982–1989 (Japan only)
AW10 MR2 1984–1989 (Japan only)
AE70 Sprinter 1979–1983 (Japan only)
AE81/85 Sprinter 1983–1987 (Japan only)
AL25 Sprinter Carib 1982–1988 (Japan only)
AL21/25 Tercel 1982–1989 (Japan only)
High compression version with Toyota TTC-C catalytic converter.
86 PS (63 kW) at 6,000 rpm and 121 Nm at 4,000 rpm (compression at 9.3:1)
AL21 Corolla II 1982–1984 (Japan only)
AL21 Corsa 1982–1984 (Japan only)
AL21 Tercel 1982–1984 (Japan only)
Twin carburetted swirl-intake version with Toyota TTC-C catalytic converter, introduced in August 1984 along with a facelift for the Tercel (and its sister variants) in Japan. Features two variable-venturi carburetors, which Toyota wanted to test in Japan before launching them in export along E series engine, albeit in single carburetted version. Because of the swirl-intake, the sealing surface between cylinder head and valve cover is different from other SOHC A-engines, featuring vertical curves on the manifold side of the head. Thus, those parts are not interchangeable between each others.The swirl was supposed to improve burning of the air-fuel mixture, thus enabling cleaner emissions, improving fuel economy, and increasing power.