Anybody Had these codes?

My daughter has a 92 88 Royale. She said it stalled several times the other day. I checked the trouble codes and this is what I found.
15 - Coolant Sensor Circuit
16 - System Voltage High/Low
22 - Throttle Position Sensor Circuit (Signal Voltage Low)
23 - Intake Air Temp (IAT) Sensor (Low Temp Indicated)
58 - Security System (Fuel Enable Circuit)
65 - Cruise Servo Position Sensor
67 - Cruise Switches Circuit
68 - Cruise System Problem
Anyone ever had anything like this? I've read thru a bunch of the old posts and I hven't seen a problem like this one mentioned. I know all the sensors can't be going bad at the same time. Think maybe the computer is going bad? I started it and let it run for about 20 minutes with no problmes then drove it about 10 miles and it did fine. Any thoughts or suggestions would be appreciated. Thanks.

Clear em' and see which ones come back as a starting point here.

Sorry, I forgot that part. I did clear them. They all came back. I'll try it again tho. Can't hurt. Thnaks for the response.

I know it's been a while since your posted your question, but I was wondering if you figured this out. My '92 88 Royale is having the exact same codes. Just started all of the sudden. Only stalled on my once, but am having very pronounced periods of reduced power while the dash computer is displaying warning messages and SES light is on.

Im having what sound like a similar problem on a 1994 Olds 88 Royale 6 cylinder. Im getting intermittant stalls. The speedometer goes wild, all the lights come on and the engine dies going down the road. (often after 15 miles of perfect driving) then I restart the engine going down the road and it runs about 3 miles and it happens again. Does anyone have any ideas what can be causing this??

My 94 was hacing similar problems but the only code that came up for me was "Cam Shaft Sensor- Signal Weak." Its abour 25 dollers for a new one and takes 5 minutes to replace. Try it.