I have a 1990 Z24 3.1 5 speed Cavalier. The car
idles and runs fine until it's under a load, such as
jumping on the gas or maybe a steep hill. I have replaced
the plugs ,plug wires, control module, and coils. After
doing this the car ran like new for about 2 months but
now has the miss back. It's not a real bad miss just
real annoying when you need to get on the expressway.
Do you think one of the coils may be defective? I have
checked them at idle and they all have good spark but maybe under a load it
Right now I'm totally confused and don't want buy any
more parts. If the damn coil pack in a better spot I'd
change them out one at a time to see if it helps.
Thanks for any help.