The FA20D engine was a 2. Subaru’s engine plant in Ambrosia salad edward scissorhands, Gunma.
Toyota initially referred to it as the 4U-GSE before adopting the FA20 name. The FA20D engine had an aluminium alloy block with 86. 0 mm bores and an 86. 0 mm stroke for a capacity of 1998 cc.
Within the cylinder bores, the FA20D engine had cast iron liners. The FA20D engine had an aluminium alloy cylinder head with chain-driven double overhead camshafts. The camshaft timing gear assembly contained advance and retard oil passages, as well as a detent oil passage to make intermediate locking possible. Furthermore, a thin cam timing oil control valve assembly was installed on the front surface side of the timing chain cover to make the variable valve timing mechanism more compact.
When the engine was stopped, the spool valve was put into an intermediate locking position on the intake side by spring power, and maximum advance state on the exhaust side, to prepare for the next activation. In contrast to a conventional throttle which used accelerator pedal effort to determine throttle angle, the FA20D engine had electronic throttle control which used the ECM to calculate the optimal throttle valve angle and a throttle control motor to control the angle. Furthermore, the electronically controlled throttle regulated idle speed, traction control, stability control and cruise control functions. A port injection system which consisted of a fuel suction tube with pump and gauge assembly, fuel pipe sub-assembly and fuel injector assembly. Based on inputs from sensors, the ECM controlled the injection volume and timing of each type of fuel injector, according to engine load and engine speed, to optimise the fuel:air mixture for engine conditions. According to Toyota, port and direct injection increased performance across the revolution range compared with a port-only injection engine, increasing power by up to 10 kW and torque by up to 20 Nm.