i had same problem on my 94 changed the crank and cam sensor then it was fine
The spark plug wires on your 1994 Chevrolet Caprice are quite easy to change. The spark plug wires simply lift off on each end. Put the new spark plug wires on and push until you feel a click.
You may have to find a thin-walled spark plug socket.
Disconnect the battery of the car, remove the cables and boot covers, and remove the old spark plugs. Put in the new spark plugs, replace the cables and boot covers, and connect the battery.
there is six spark plugs
no spark
.035
Sportsman 400 4x4 94-97 .028 NGKBR8ES
remove the center cover on the engine,two cross head screws this will give you access to the leads and plugs
change your opti-spark they are know for this
.040
.054 inch