Fast Idle Or Run-On

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2002 Mazda Tribute, 2002 Mazda Protege5, 2002 Mazda Protege, 2002 Mazda Millenia, and 2002 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.

Check for Engine Coolant Temperature (ECT) sensor malfunction.
Check for inoperative air charging pressure control system (Millenia 2.3L).
Check for intake air system leak.
Check for mis-adjusted air adjusting screw.
Check for misadjusted or binding cruise control cable.
Check for misadjusted throttle cable.
Check for throttle body malfunction.
Check for Throttle Position (TP) sensor malfunction.
Check for Throttle Position (TP) sensor mis-adjustment.
Check for vacuum leak at intake manifold.