My 87 gn started running like crap yesterday morning. I took the ignition module to the auto parts store and had it tested and it failed. I bought a new one and put it on the car but the car will not start with the new ignition module. im sure that I connected all the wires properly to the coil pack and I had them test the new ignition module before I left the auto parts store. the coil pack is maybe 2months old. Any ideas of why the car will not start?