Protege L4-1839cc 1.8L SOHC (1992)
Air Cleaner Housing: Description and Operation
Intake Air System
PURPOSE
Remove abrasive particles from engine intake air. Clean intake air significantly reduces engine wear.
LOCATION
Left front side of engine compartment.
OPERATION
All air entering engine intake system passes through air cleaner assembly paper filter element. Two resonance chambers are connected to the
intake air ducts. The resonance duct is a silencer connected ahead of the air cleaner to reduce intake noise. The resonance chamber takes
advantage of harmonic oscillations within the intake system to improve volumetric efficiency at low engine speeds and increase low speed torque.
It also reduces air flow sensor plate "flapping" during idle and low speed operation.
CONSTRUCTION
Air cleaner assembly is a plastic box with replaceable paper filter element.
