Milage suffering on 94

[Richard]

Milage on my 94 has been averaging about 13 mpg for a long time now. Used to get about 15 average, as much as 17 on highway. Just thought drop was due to 150k+ on the motor. Upon investigation I found that the fresh air flap in my air cleaner is always closed, it no longer opens. I searched for a replacement actuator and cannot find one For the time being I have wired it open and the result is much better milage. In a warmer climate so maybe not a big deal. Any help finding a replacement would be appreciated.