1986 Cougar 3.8 L won't idle. April 19, 2018, 05:39:50 PM My 1986 Cougar 3.8 L V6 won't idle on its own. The milage is 135,000, which is relatively low for the age. If I manually spray starter fluid down into the throttle body the car starts right up and runs great until the fuel is burned off. I have replaced or done the following:1. replaced the fuel pressure regulator2. replaced the fuel injectors3. replaced the control module4. replaced the pick up coil5. replaced the fuel filter6. replaced the computer7. replaced the battery cables8. fuel pump is ok and fuel pressure is good9. Bought a tune up kit for the throttle body and did thatAfter doing all of this there is no change and the car will not idle on its own. ANY ideas on how to get this car running again???