Need some help, my friend has a 2003 elantra, he did his own timing belt and blew the motor, anyway. I got him a 2006 engine same VIN code, same everything. using his intake and exhaust manifold. everything is connected, engine is in, everything works, but the engine wont start. crank no start. i have spark, fuel, compression. everything an engine needs to run. I verified engine timing like 10 times everything is good. I was wondering if there is a computr problem that i need the 2006 computer, or something. any ideas, i really need help

speedster302v8@yahoo.com

Blake