Okay so i have a 1989 nissan 240sx with a s14 ka24de motor and transmission, i have a s13 ka24de harness and ecu. Everything is hooked up and all grounds are grounded. Heres the problem, i go to start the car and click. So i replaced the starter with a brand new one, and once again click. so i ruled out the starter and i checked all my grounds once again and its all good. Also i checked my battery and terminals and everything is good and clean 12plus volts. The ignition switch has also been checked. So it has to be a electrical problem or sensor or something. i checked the car for kill switches from previous owner but there were none.
So please if you have any thoughts or information please help me out.