Engine Performance problem
1990 Plymouth Laser 4 cyl Two Wheel Drive 87000 miles
hello I have 1990 plymouth laser turbo
motor shakes real hard so I changed plug wires
and the plugs still shaked hard then I changed
coilpackes for spark. Did not work so I checked the spark the 2 outer plugs had spark the 2 middle plugs had no spark what else could it be what else stops the spark please help me thanks mike.