[Just313]

Hello, guys
I drive a n55 e90, which has developed a very weird issue I was unable to find so far.

How it happends:
1. I drive normally for a bit
2. My car wamrs up and I start pushing it a bit
3. I reach about 5-6k rpm and all my electrical power goes out
My dsc, transmission, 4wd lights all come on, all my sensors such as oil and such start going crazy, my music stops, and my windshield wipers come on


After I restart ignition all of these lights just dissapear.
I have noticed this has started happening after I installed colder plugs.
My car is FBO, and I replaced the battery when this started happening.
I also noticed my ecu fans or something like that is making alot of noise
Any help will be appreciated!

[gavin_0108]

Could potentially be your alternator? You should be getting 14.7 volts at the battery when the car is running.