Does the car run on ether? Does it sound erratic when cranking the engine? If not, replace the pick-up assembly in the distributor, or replace the whole distributor, and the ignition coil. Sounds like weak spark to me, and either of these (assuming your cap, rotor and wires are in good shape) can cause your problem. Side note, there is no "control module" on these cars; it's all contained within the PCM.