S2000 L4-2.2L (2004)
Fuel Cut Control Unit: Description and Operation
Fuel Cut-off Control
During deceleration with the throttle valve closed, current to the injectors is cut off to improve fuel economy at speeds over 1,050 rpm. Fuel cut-off
action also occurs when engine speed exceeds 9,000 rpm, regardless of the position of the throttle valve, to protect the engine from over-revving.