maybe something loose? check all your fuses and anything electrical, try getting the code read if you can find a parts store that reads obd1 codes and that should narrow it down

sounds like it could be misfiring, idk not enough info. have you tried a tune up?

try doing a compression test or leak down test it sound like internal issues with the (sounding like its running on 2 cylinders thing rings/valves ) also check for boost leak and when did you change the o2 sensor last this has happened to me many times with the check engine. just remember to start with the simple fixes first ie plugs,wires ect

How about reading the code(s) first?

http://www.dsmtuners.com/forums/articles-tuning-ecu/319844-1g-code-reader-cel-code-reader.html

ECU Code Checking

is the maf connector connected?

check the maf sensor itself. missing pieces of the honey comb or even a dirty maf sensor. check o2 sensor too. do you have a wideband? check if its running rich or lean. my car had the same problem a couple weeks ago. i check all pipes and everything. all connected. changed the upstream o2 sensor ran fine for a day. it did felt like it ran on 2 cylinders. took it to the shop they had no idea. read the cel i had for 2 years which was the iac motor and said it was that. i changed a brand new one in and still wasn't it. drove the car home, every stop light my car died. check the maf sensor and the honey comb was gone. changed the maf sensor and now it runs strong. hope this help.

Alright. Thanks guys. I will definetly check the maf and o2 sensor, then get back with you guys.

I also had a similar issue with my 92, ended up being the Temperature Coolant Sensor.

Either way, about the only true way to find out what is triggering the CEL is to have codes checked.

Good Luck