1996 Cadillac SLS

Engine Performance problem
1996 Cadillac SLS V8 Front Wheel Drive Automatic 88000 miles

Help, need answers regarding this. Service engiine light on. Idle rough & no power under acceleration. Under powered driving down the road. Dont know if its a fouled plug, injector, sensor, or what. Cant drive to local parts to store to have computer scanned do to this condition. Any response would help. Car has 88,000 miles on it and have had no problems until now.
January 24, 2009.

Too many possibilities need scan for codes see if you can rent from parts house

Jan 24, 2009.
With key on, push off and warmer at the same time, on your climate panel. Hold them until all lights come on, release them, and codes will start displaying. You are concerned with codes starting with'P'. See if you can get a code and repost. Sounds like possible misfires from plugs/wires, and/or coils. Possible plugged exhaust, low fuel pressure. A code may or may not point to a so-called smoking gun. P.S. If it is a dual zone climate system, and the drivers side has a knob, the use off and passenger warmer. Fan up will select items, and fan down will scroll. Scroll until you find pcm, Fan up then scroll until you find PCM codes and fan up again.

Jan 30, 2009.