i have this 86 eldorado,the odometer shows error,i know it is tamper proof,i just got it froma friend of mine,how do i reset this?the owners manual said to take it to cad,dealer to get reset,dont think i need to spend that much cash on this problem.also when i scan the car from inside the heater it shows ecm? dont understand this one for sure,put new ecm- proms with no luck,also im in need of a electric fan moduale that mounts under the hood,????????????????????????????????????????????????????????????????????????????????????????????????????????.let me know and thanks..
jon
jon