Hello I got a 97 jeep wrangler 4.0l mt. It will crank over but wont start and run. my brother was trying to move it and tried jumping it with a charger. I dont know what happen but. it wont run. I hooked up a scan tool up to it and did key off and on trick both dont work no commucation from the scantool. So replaced the computer still have the same problem. checked and replace the crankshaft sensor. still the same problem. have no spark , fuel pressure and power to the fuel injectors or coils. Checked all the fuses fusealink link the i know of and relay the are tested good. I wondering anyone has any ideals.