[orz]

Hello forum experts!
I got a weird issue, and I am bit lost on how to troubleshoot it.
When engine under load - Uphill, Gear shift, A/C comp turns on, Or just randomly, the battery light flickers, and sometimes the AC stop working.
I have tried:
1. Changing Alternator(3 times)
2. Switching battery
3. Idler pulley changing
Nothing seems to help. have to mention that I replaced ignition coils a few months ago to non OEM coils.
Any ides?   

[eye30]

Has this only started since the ignition coil changed?

[orz]

It was there before the ignition coils replaces, I just went worse with the time.