Intake Air By-Pass (IAB) Control System
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 1999 Isuzu Oasis, 1998 Isuzu Oasis, 1998 Honda Prelude, 1998 Honda Odyssey, and 1998 Honda Civic. However, it is still accessible from the selected car via links, so may be relevant.
The IAB control solenoid valve is located at lower rear of engine. IAB control solenoid valve is off when engine speed is more than 4900 RPM.