Cadillac Repair: 90 deville, car stalls, rought

Question
car stalls at times.  Turn to on "service vehicle soon"
& "service engine soon" lights blink and stay on sometimes.
with lights normal car runs fine.  Only consistent fault code is f32 - ecm to bcm fault (loss on com).  will f32 cause car to run rought and stall?  How do I troublshoot f32?

Answer
In 99% of all cases you must replace BOTH the ECM and the BCM computers.

If this does NOT resolve the problem the cal-paks (proms) in both computers will require replacement.

If you are mechanicaly inclined or know of someone who is, You will need simple electrical schematics, Test procedures and picture locations of the components within the system that is causing you problems of which can't be done on this website which only allows one picture. I do not have a website so you will have to e-mail: onlineautohelp@msn.com in order to obtain the information.