if there is no spark while the car is cranking but after you let go of the key, try checking the blue wire, with a meter, while cranking. if it has less than 10.5v while cranking and 12v or better when you let go of the key, check the fuse box at 10 and 11. that's the power from the ign sw, into 11-blue/yellow wire out of 10-blue wire-as a jumper, not through the fuses, and then out to the coil 15 terminal. if while cranking you have 10.5v or less at the fuse box, then try another ignition switch. good luck, chuck.