1992 Mazda 323 4 cyl Front Wheel Drive Automatic 235000 miles
My Mazda Astina has an engine idling problem. This problem happened over a period of time not at once. It began when driving the car and stopping at lights etc the idle would go up from around 750rpm up to 1200 -1500rpm then it would drop back to normal[750rpm]. Now it sits permanently on around 1200 rpm at idle after warming up.
The car has been to several mechanics using diagnostic equipment and no one has been able to diagnose the problem, not even a Mazda dealership.
I've replaced the airflow meter, the idle adjuster[sits on LHS side of throttle body]and the water temperature control valve[sits underneath LHS of throttle body]. All the wiring has been checked for earthing problems.
Could it be the ecu causing the problem?
Hoping you can help
have the same problem?
Thursday, November 13th, 2008 AT 4:39 AM