Sidekick JS 2D 2WD L4-1.6L (1998)
Auxiliary Air Valve (Idle Speed): Testing and Inspection
Idle Air Adjusting Screw and Its Passage Check
1) Disconnect IAC valve coupler with ignition switch OFF.
2) Check that with cold engine started, as cooling water temperature rises, engine idle speed reduces gradually. If check result is as described
above, fast idle air valve is in good condition.
If not, fast idle air valve, air passage or coolant passage is faulty.
