I just changed my spark plugs and my car won't start. I put everything back together and a CEL comes on and the car doesn't turn on. The CEL is 1300. Can it be the ignition coil? I took the ignition coil straight out and put it back the way it was supposed to. What could be the problem.

 

What year? 300 or 400/430?

 

That's for the #1 ignition coil. Swap with another to see if the code follows the coil around. It would change to 1305, 1310 , 1315 etc.. The other thing it could be is your ECM.