alternator not putting out a charge even though its good

ok i have checked it all around the wire from the alternator. i decided to check the wire that goes to the alternator to the selniod(black with orange strip) at both spots while i had it off the selniod and both spots (at the end of the wire and the begaining of the wire from the alternator did not put out a reading. while it was hooked up to the selniod it read the same as the battry did which was 11.7 so i know the wire is good. what could it be beside the new alternator? autozone says its good. hmmm its to late to take it back again. please help. did i maybe, have a wire ran somewhere wrong? i had to swap the dash and main hardness durning the engine swap. and where and what is the diode?

ok i change the big wire on the battert to the selniod today. that was my first guess. i have a question would my alternator stop putting out a charge all together if i unhook my evg from the throttle body? i did so today as i was putting the new alternator on. i put a block plate on and just left the plus un done so i could get ride of all that emmision stuff. i decided to pull the wire that goes to the battery from the alternator and check it with my voltage meter while the car was running and its not putting out any volts. but reads what the battery does while running when its hooked up to the selniod. which is 11.7 are lower. please help if you can. im so ready to drive this car. been working on it for 3 months straight with the swap i did.

its a new aternator and i went and had it checked tonight at autozone. they say its good but even after i re-hooked up the evg on the thottle body it still is not putting out a charge. this bs is killing me. i have worked so hard on the whole swap. the old alternator was killed by an elec. fan i put on the car. so of course i have taken it back off. they checked that alternator and it was bad thats why i have the new 1 now. it has to be a wire some where not letting the alternator give off a charge. i know its grounded right and my battery is good. i know this cuz of all the test i did with the voltage tester. what could it be?

fromer owner of 1968 mustang, own 1990 lx 5.0,1989 lx, & a 1995 v6 . the one im swapping is the 1989 it has trick flow intake, mac shorty pipes, h-pipe, flowmasters, pro 5.0 shifter, t-5(5yrs. old), all msd ing. mds spark plug wires 8.5, no smog, elec. fan, rebuit engine, 3.73 gears, underdrive pulleys.

couldnt i check the alternator like i did by un-hooking the wire that goes to the selniod and testing it then? i did that and not volts on that wire from the alternator. thats what i am asking is there a wire that could be ran wrong or bad that would stop my alternator from working?

ok i had the alternator check on at a place that shows the voltage that it is putting out. it was at 14 volts or so. i came home and decided to pull off the alternator braket and grind away the spots that touch the block to make sure i have a grat ground. put it al back together and still same problem its not putting out any volts. everything else works on the car like starting. i drove it to work today (2miles away). i know it was running just off the battery but i need to use this car for work. i am wondering if there is a wire on the alternator plug that is hooked up wrong & not letting it kick on. can there be? i checked the plug(black with orange strip) itself and its good. i looked at a good diagram by tmoss and seems like there isn't a wire that could cause it not to put out a charge. please help if you can.