i have a 1996 4runner w/ cold air intake, water got in durring the car wash and its dry now but the maitnance light it still on..how do i reset that light so the MAFS woorks again?
The light won't stop the sensor from working. If the sensor is OK, then it's working fine right now, and the light is just telling you that there was a problem at one point. If all is well, the light will go off on its own after you start the engine some number of times. To force the light to go off, you can disconnect the battery for about half an hour.
You can also pull the main ECU fuse for several minutes, which do the same thing as disconnecting the battery except that all the resets will be maintained like the windows and stereo channels. I would just lave it alone unless you are due for DMV inspection soon.