Rep Power: 0

afternoon everyone figured i would post on here and see if anyone has an ideas. for the past year i have had an issue with my 02 civic ex EVERY TIME i connect the positive terminal from my alternator to either my battery + terminal or my fuse box its like the alternator kicks off. i can get 14-15 volts without hooking the main line to anything but my volt meter. i have pulled each and every fuse under the hood and connected the line to the battery each and every time and also to the fuse box every time i pulled a fuse to see if something was causing a drop in the fuse box but nothing seems to keep the alternator at voltage. voltage at yellow black is at 12 volts i disconnected green/white line at the harness to the alternator to stop the ecm from kicking off the alternator also disconnected the eld so in theory i should be running in high mode full output of the alternator. hell i have even put the green/white line to 12 volts to keep it as high as i can get it to keep the alternator running regardless and AS soon as i plug alternator output into the system it either shuts down the alternator or something causes the alternator to drop voltage. on a side note i have replaced all grounds and did voltage drops on all lines from alternator to battery battery to fuse fuse to starter on both positive and negative sides... i cant figures out what the hell is going on.. anyone got any ideas on what could be going on..thanks sorry for the long *** run on sentence English is not my forte.

 
Rep Power: 0

ok some more information... just now i went and took a set of jumpers and a second battery, with the car running alternator outputs not hooked to anything alternator showing 14-15 volts. took the jumpers hook to alternator chasis and alternator + terminal then plugged into second battery sitting on ground outside of car. alternatr jumps down to 13.-5-14 as susposed to.. its defenlty somthing on the car thats causing the issue any ideas guys?? im at a loss this car has been sitting for the last year because i did not want to mess with it anymore lol now im back at it.

 
Rep Power: 518

Works normal with a good battery connected by jumper cables, so maybe the battery in the car is bad

 
Rep Power: 0

both batterys are brand new one is out of my 2016 ford focus and other brand new from autozone batterys also passed load test and voltage test. the first battery is in honda used to start car and get power to keep running but the second battery is just sitting on the ground nothing hooked to it but the output of the alternator and the chassis ground