This engine is fairly outdated compared to its counterparts that were used in the later Lancers.
The 4G12 was not offered by Mitsubishi with fuel injection. 4G12 was the first to feature Mitsubishi's MD (modulated displacement) technology, a form of variable displacement which shut off two cylinders during light load and at low speeds. It was first introduced in the Colt and Colt-derived models in 1978.
The Mitsubishi Orion or 4G1 engine is a series of inline-four internal combustion engines introduced by Mitsubishi Motors in around 1977, along with the Astron, Sirius, and Saturn. Motor vehicle engine Mitsubishi Orion engineĭOHC 4 valves x cyl.