If any body can answer a quick question playing with my rough and high idling 5.6 I pulled one of the connectors of the coolant sensor and the system went into limp home but pulled the other one off and nothing happened? both reading the same output at operating temp any ideas. High idle at operating temp. 1000rpm @ 80 C but drops to about 700 in gear after reading most of the posts on this suject, my theory on a bad Fuel injection control modual is starting to sink. not concerned with rough idle but more with the rolling idle thanks for any help/advice. just dont understand how the box converts the temp signal out all the other devices that uses it. bad low temp would mean cold start valve running all the time?

thanks