location of ignition control module

What is your question?

I just replaced the head gasket, valve gasket and now i cant get the engine to start. It will crank but wont start. Alternator,starter,crankshaft,cam shaft senors, vts sensor,coils,fuel pump, water pump, radiator have all been replaced. I feel like i'm missing something here. But i believe that may be all the parts that have been replaced. It did start up before head gasket job. Did a spark plug test and it had a faint spark on the cylinder that i used(#4). So I'm trying to see what or how the coils get their power, I feel like that I'm not getting full spark and im at wits end, because i cant really find anything online pertaining to this exactly.

How long has your 2003 Toyota Corolla had this problem?

a week or so