Hey everyone, I just finished my ef9 front end conversion ( I will post pics later). Every light on the car went fine and when I finally turned on the car, everything was ok at first but I noticed that when I turned on the lights, my tachometer started to go bezerk and my engine started to choke, I was like wtf and then, nothing at all, my car wont start and the following symptoms are present.
1- car doesn't start at all
2- none of the lights comme on
3- when I turn the knob for the lights, my temperature guage goes all the way up
4- beeping sound ( the one that anoys you when you start the car) is almost inaudible
5- when I press on the button for the hazard lights, there's a weird buzzing sound that starts.

In my wiring for the front end, I matched the colours of the low and high beams for the h4 plugs and everything worked fine. I took the new horns from the front end and soldered the new plugs and horns. turn signals didnt have any modification. as for the corners, the remaining plug that was unused y cut and I soldered wires all the way to the sidemarkers on the fenders. Every light worked perfectly.

I'm really clueless on what to do. PLease help me!!!