i recently bought a 92 sho. the guy i bought it from said the ect was bad and had wired the cooling fan to run when the key is on. i replaced the ect and the fan still doesn't run. now from what i've read, my car should have the ccrm with the letter "M". the one installed right now is a "K". im guessing that it came from a non-sho taurus at a junkyard. does anyone know what is different between the "M" and "K".