Cadillac Repair: what do these codes mean, absolute pressure, e 71

Question
hello i have a 1992 cadillac sedan de ville an i need to know what these codes mean it sounds like it fowls out and uses alot of gas. The codes are e 32, e 71, f 48 and it says 7.0 what do these mean, thank you chris

Answer
E32 = Open Manifold Absolute Pressure sensor (MAP).

E71 = Intermittent MAP failure.

F48 = Very low AC refrigerant pressure.

.7.0 is NOT a CODE. it is just a sequence test nitification. Nothing to be concerned about.

AS PICTURES are NOT allowed on the ALL EXPERTS WEBSITE and I am ONLY a volunteer. I have nothing to do with the operation of the ALL EXPERTS website.
Your question is going to involve substantial work for me to look up diagnostic procedures for you to perform with pictures of locations of various parts and some diagnostic tests for you to do with your vehicle.

contact me at: onlineautohelp@msn.com