voltage problem

[justin0469]

So I have replaced the alternator, the positive wire going to the alternator, and ground wires to the block and body. I am still having the same issue the continues to get worse. Usually after leaving the car off overnight, my TT will read ~13.8V at idle. After awhile, it will drop and fluxuate between 11.0-13.5V, never getting above 13.8V. That being said, at the battery it reads right around 13.9-14.6V at idle. I would understand a little bit of a difference, but that is quite a difference. And I know I still get low voltage because at times I can see my headlights and gauges dim. Any ideas?

 

[DSMcamaro]

I'd check over the wiring on your turbo timer.

 

[justin0469]

I planned on checking it out but I am still having a voltage problem if my headlights and gauges are dimming as significantly as they are.