As this is posted in a class "C" Forum I will guess you both have a 1994 Econoline.
If you have a 1994 home title with a 1993 chassis then the below would NOT apply.
For the 1994 chassis the ICM is located low on the drivers side fender near the safety wall. It is Black in color. If someone has install a Gray ICM it is the wrong one as your Ignition system is not wired for the Gray one, replace it with a Black one. Note counter look ups are wrong and say the Gray one.
The PCM Computer is located just off center high on the safety wall and is removed from under the hood.
Note you would have to post the VIN number to find the year of the chassis as the title is wrong most of the time as the title is for the home and not the chassis.
1994 E-series PCM location:
1994 E-series ICM location:
ICM = Ignition Control Module
PCM = Powertrain Control Module AKA The Computer or the brain box or ECM or EEC Computer/