I have fuel and spark for a little while about 15 seconds w key on but then it goes away. And we check the ignition module according to the book it was bad because I had only initial spark from it to start but when checking for the signal from the ecm to make it run we had none. I thought that we some how hooked up some wiring wrong or smashed it but couldn't find any thing. The reason we pull the other motor is number 1 rod brg spun but it still ran. Thanks for the help and I will check for a code after 3 of the 166 if I get nothing it will have to be timing but the marks line up. Also if I remember my helper Correctly. This motor did run initially 2 times.