Cadillac Repair: service engine soon light stays on, r 134 freon, cadillac sedan deville

Question
i own a 93 cadillac sedan deville with 112,000 miles... the "ses" light has been on steady for 3 days... i just retrieved the error codes,& they read as follows:.8.8.8 then "e" then e30 then e85 then e98 then "ee" then e85 then "f" then f46 and finally .7.0      any & all help would greatly be appreciated, thanks,billy

Answer
The E codes are history codes whereas a fault was detected but fixed itself.

The EE codes are CURRENT codes which means that the fault is always present.

EE85 = Throttle body service required which involves removal of the throttle body and clean it inside.

FF46 = You have a very low freon charge in the AC system and or you changed the freon from R-12 to R-134. The ONLY way to fix this code is to recharge the system with R-12 as the sensors for the AC system are NOT compatable with R-134 freon.

.7.0 is just telling you that you are at the end of the fault codes.

If you would like to obtain picture directives and pictures showing test procedures, you need to e-mail: onlineautohelp@msn.com