Crank the engine and listen for the sound of the engine firing. If any issues are detected, double-check the wiring connections and consult a professional if needed. Troubleshooting typical symptoms that arise during installation. Checking The MSD Ignition For Spark The following test will determine if your MSD is producing a spark. I disconnected the coil wire at the coil and cranked the engine to regain oil pressure. Most CD boxes operate the same way, making for common basic test procedures. links, including eBay, Amazon, Skimlinks, and others. Car cranks but no spark, took dizzy cap off and cranked but the rotor wasn't spinning, took the distributor out and it spins freely out and the gears look undamged.