Cadillac Repair: having problems, digital speedometer, auto button

Question
i have a 94 cadillac concours my car idles rough and accelerates real slow then kicks in later- my ride control comes up on the dash- and i having a problem with my dash the left side that shows the amount of gas shows (-------) just like that and my digital speedometer is racing when i accerlerate

Answer
Do you have any CODES in the computer ?.

Do this:

1. Ignition ON. Engine OFF.

2. Simultaneously push and hold the OFF and WARMER (^) buttons on your climate control panel for 3 seconds and release them. Diagnostic CODES should appear and then it will stop when you see PCM?.

3. As if you were video-taping the display tell me EXACTLY what you see.

4. If you loose track just press the AUTO button and start over.