My 98 cavalier engine stops running when driving down the road?

. Ensure battery is fully charged.
. Test all under-hood and under-dash fuses with a test light or multimeter:

https://www.askmehelpdesk.com/cars-t...tml#post252145
. Check for codes.
. Test for spark. If there's none, check the Ignition Control Module and coil packs.
. Test for fuel. Do you hear the fuel pump in the gas tank run for several seconds, when the ignition switch is turned to ON?