TL L5-2451cc 2.5L SOHC MFI (1997)
Intake Air Bypass (IAB) Control System: Description and Operation
DESCRIPTION
Two air intake paths are provided in the intake manifold to allow the selection of the intake path most favorable for a given engine speed.
Satisfactory power performance is achieved by closing and opening the intake Air Bypass (IAB) valves. High torque at low rpm is achieved when
the IAB valves are closed, whereas high power at high rpm is achieved when the IAB valves are opened.
