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A low fuel consumption 1.8L 4-Cylinder gasoline engine was developed as the new generation i-Series power plant. The engine utilizes variable valve timing and lift, which produces low fuel consumption by delayed intake valve closing, while still achieving high power. In addition, this light weight and compact engine's high power was increased by using a variable length intake manifold and modified engine technologies. Using a two-bed catalytic converter installed immediately adjacent to the cylinder head and other new technologies, this engine achieved LEV II ULEV certification. Engine noise has been reduced through a reduction in the level of crank rattling by increasing the rigidity of the crank support in the lower block.