Now my maint reqd light has come on.i just passed 200000 miles.itried to clear check engine by dis conecting the battery.no luck
Have you checked all fluid levels...these things are somewhat idiot lights and conceivably on your high kl vehicle you may wish to take the bulb out or disconnect the wire...could be that the monitoring function is not functioning correctly..check the manual or google the things that it monitors
SOURCE: My 2002 Lancer's check engine
Aftermarket converters can cause catalytic converter monitor issues, these are not O2 sensors, they are catalytic converter efficiency monitors, I know they look like a O2 sensor but they are very different in how they work, what are the codes you are getting.
SOURCE: Code P0158
Bank 2 sensor 2 is the post-catalytic converter O2 sensor on (usually) the driver's side. It's the sensor that the car uses to monitor the efficiency of the catalytic converter. Whichever side of the engine has cylinders 4, 5, and 6 is bank 2 (you'll probably find that information on a decal underhood). Flashing the computer could be as easy as what you're doing (resetting by disconnecting the battery), or it may involve a more detailed process including diagnostic software. It's most likely though that what you are doing is all that's required - disconnecting the battery for 30 minutes or so puts the ECU back into learn mode, and it basically starts fresh to relearn the engine's operating parameters.
SOURCE: Will not pass inpection, 5 sensors not ready--V6 3.0
Drive the car for 2 miles non-stop and take it to smog inspection WITH OUT TURNING OFF THE CAR!! the key is that the car goes threw the test while the engine is running ...
if the car is turned off ... u will have to repeat procedure ...
SOURCE: maint reqd light stays on
From what I remember with my Mighty Max '90, if you remove the dash panel , the one with the cluster gauges, you will find a push button that resets the engine maintenance light. It's a thing that wont reset by itself and lights up at specified mileage that is reached by the odometer. Usually the mechanic that does the work indicated by the light will reset it when the work is done. The red light might indicate a serious problem, so before you ignore the possible problems it might indicate, eliminate the the serious ones before you reset. The trick is to get the dash panel off.
SOURCE: LA LUZ DE MAINT REQD ESTA PRENDIDA
facil, ve a este sitio
http://www.carrito.net/board/showthread.php?126558-Maint-Reqd
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