944 S L4-2479cc 2.5L DOHC (1987)
Deceleration Valve: Description and Operation
This device opens the throttle slightly according to intake manifold vacuum to prevent an increase in hydrocarbon emissions during deceleration.
Deceleration Valve: Description and Operation
This device opens the throttle slightly according to intake manifold vacuum to prevent an increase in hydrocarbon emissions during deceleration.