The FA20D engine had flat type knock control sensors non-resonant type attached to the left and right cylinder blocks.
Furthermore, the electronically controlled throttle regulated idle speed, traction control, stability control and cruise control functions.
The FA20D engine had long-reach, iridium-tipped spark plugs which enabled the thickness of the cylinder head sub-assembly that received the spark plugs to be increased.
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.
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.
The camshaft timing gear assembly contained advance and retard oil passages, as well as a detent oil passage to make intermediate locking possible.