#1 What kind of car and year and engine ? , could be an easy fix,
#2 the white ballast resister on your fire wall that has two wires on the two ends...put a jumper wire across it and if it starts shut it off!!!!!!!!!!! and go to any parts place and replace it, under $7..Do not run the car this way it will over heat wires and could melt down..
#3 Pull a spark plug wire off and put a Philip screw driver in the plug wire and hold it about a 1/2 inch away from your exhaust manifold it should spark when some one is try's to start the engine and do not touch the car while doing this, it will shock you good, the other easy check would be to make sure your ECU electronic box is grounder good to the body part it is attached to.
If there is no spark after checking these things any auto parts store will have a replacement ECU, check fuses would be the very first I would do, Oop's:D
