This workshop manual covers Mitsubishi vehicles equipped with the 4G9 engine family, including models such as the Lancer, Carisma, Pajero, Galant, Space Star, Space Runner, and the 6th generation Colt. These vehicles utilize robust 4-cylinder engines with displacements ranging from 1.8L (4G92) to 2.4L (4G94), featuring advanced technologies like MIVEC variable valve timing and GDI direct injection on select variants. The engineering behind these engines emphasizes reliability and performance, making them suitable for a wide range of automotive applications. This comprehensive manual provides detailed procedures for maintenance, overhaul, inspection, and adjustment of these Mitsubishi engines. It includes essential information on servicing critical components such as the timing belt, fuel system, cooling system, lubrication system, cylinder head, pistons, crankshaft, camshafts, ignition system, and emission controls. With clear text and illustrative pictures, this manual is an indispensable resource for owners, mechanics, and technicians seeking to maintain and repair their vehicles effectively and efficiently.