im selling my 02 sierra (4.3 5peed) and plan to keep my electric fan conversion setup (05 impalla fans), to install in my girlfriends 98 c1500 (4.3 auto). i wired the fans to the ecm and tuned the ecm for single speed operation and it works flawlessly. her truck on the otherhand has a different style of computer system. is it still possible to wire elctric cooling fans to the ecm on her setup? the ecm is located on the drivers fender in her truck, if i remeber correctly.

i know thermo switches are an option but i like having it wired into the ecm. seems like one less thing to go wrong (thermo switch falls out, corrodes off blah blah blah).

opinions?