That is a dam good question ! Apparently no one knows !
In order to locate the ECU on the 1987 Ford F150, you will need to first remove the ECM. Once the ECM is removed, the ECU lies right behind the left side kick panel.
Yes,
I believe it is built into the altenator.
on the side
I believe it is 19 gallons ( U.S. ) front tank on your 1987 F150 long bed
under the dist. cap
175 hp
You can start with the 02 sensor. if that does not fix the problem then you may have to consider the ECU.
1987 Ford F150, Long bed
The Engine Control Unit (ECU) on a 1987 Ford Taurus is typically located under the dashboard on the driver's side. It is mounted on the firewall, near the brake pedal. You may need to remove some trim or panels to access it properly.
5000cc engine will fit .
its on top of the column about half way down