Originally Posted by 86rutmaker

some of you may have read the thread i put up of my jeep not running the fuel pump and not having spark, well that was the ecu, now ive come into a total different situation, once i plug in the alternator it starts to run rough and i cant even touch the gas or itll die, it is the 2.5 5 speed manual, 1986 cherokee, i put a brand new alternator and still does the same thing, im completely lost, ive even ran the wire directly to the battery, tried a different battery also, is there like something else the alternator runs or is connected to, if i UNHOOK the alternator itll run like a top, no issues. please help if you have any idea what the issue might be, it ran great before the ecu went out than this.