Is it possible to clean the idle air control valve on a 1995 2 liter Mazda 626?

yes it is possible but you need a special Torx socket to remove the 2 safety screws holding it on. Be very carefull not to scrape any sealing surfaces on the piston and if using carb cleaner, keep it off the plactic and electrical parts.

I recommend, using either electrical cleaner, or brake cleaner as these dry and leave no residue. Be very careful taking it out of the throttle body, as to not lose the springs. Also, note the order it comes apart for reinstallation. spring, shaft and plunger, spring. Spray with cleaner, wipe clean. DO NOT spray into the throttle body. When reinstalling, be very careful not to lose the O ring on the throttle body. Tighten down. Also, if you lose the safety screws, don't fret. use the same size machine screws or bolts from any hardware store. Above all, take your time, and be careful: this part costs $400 and up.