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.
Intake and throttle The intake system for the and included a 'sound creator', damper and a thin rubber tube to transmit intake pulsations to the cabin.
The hydraulic lash adjuster — located at the fulcrum of the roller rocker arm — consisted primarily of a plunger, plunger spring, check ball and check ball spring.
Cylinder head: camshaft and valves The FA20D engine had an aluminium alloy cylinder head with chain-driven double overhead camshafts.
The spark plug caps, which provided contact to the spark plugs, were integrated with the ignition coil assembly.
Exhaust and emissions The FA20D engine had a 4-2-1 exhaust manifold and dual tailpipe outlets.