[valentine1210]

So my old 2.4 blew itself apart. Now that the new motor is in it won't start even though it's got a new battery and a new starter. The ecu has all the power going into it but nothing coming out. Bad ecu? Any way to fix it?

 

[Slater451]

Do you get power to everything else? Could be a bad ground somewhere. Double check all your grounds and positive connections. One loose cable will prevent the jeep from starting

 

[Wabernasty]

Slater's correct. I had trouble with my battery, I would leave my jeep off for 10-15 minutes in normal conditions, and the battery would be dead. Checked the terminals and had a loose connection on my ground. I tightened it and everything went back to normal.