Ok Cadillac Gurus Can U Help Me ???

Got the car off a friend a 94 sedan deville 4.9 with about 150k . . It was sitting for bout three months without driving.. both the security and check engine lights are on ...

I have done some research and concluded that the service air ride is no biggie... My concern lies with the fact that the car is idling roughly and has alot of hesitation. So i did the codes search and came up with this exactly ;

P052 HISTORY/ PCM MEMORY RESET
P085 CURRENT/ IDLE THROTTLE ANGLE TOO HIGH
P097 HISTORY/ HIGH RPM P/N TO D/R SHIFT
I039 HISTORY/ LOSS OF ROAD SENSING SUSPENSION DATA
I052 HISTORY/ KEEP ALIVE MEMORY ERROR
NO ACP
NO SIR
PCM ?

ok can anyone tell me what this all means frankly im lost with this info///

Thanks for any help or advice ...

A few of those codes are normal from sitting with no battery. The ones for the high idle RPM and the high shift RPM would be from a bad Idle Speed Controller. But since the battery was disconnected the computer has to relearn the idle procedure. I'd drive the car for 10 miles or so, then reset the codes and check them again after another 10 miles. If the same idle speed codes and shift RPM codes come up, I'd look at a new ISC.
If it's just idling rough with hesitation, it may need a tune up, and possibly the EGR tubes inside the throttle body may be plugged up. Those are easy to clean with a bottle brush, some carb cleaner. Just look down the throttle body with the engine off, and you will see two tubes sticking up.

Thanks caddydaddy can you just tell me how to reset the codes .. And is it normal for the security light to be on ???

try this site http://myweb.accessus.net/~090/dtcobd1.html#pcm it tells what the codes are for everything on your caddy, even how to reset the system.