OK Ive been having troubles with my mass air ever since my motor build up! when i put it all back together and hooked it up it runs rich and farts and bucks and runs like crap! so Ive been running it unplugged now for awhile with no ill effect! so i figured the electrical unit was faulty so i go to the wreckers and get one out of a 95 3.8l mustang! it plug and play hooked it up no probs car ran great! so i thought well ill take the electrical off the new one and put it on the other unit the old mass air and see if it works so i take the old electrical unit off swap it for the new unit i just got hook it all up and take her out for a spin! and it stats farting and bucking and running like **** again! so i swapped them out again and put the 95 mass air back in and it runs great! my question is why wouldn't the other mass air units work even with the 95 electrical hooked up? but the whole 95 unit works fine?