View Single Post
      07-07-2012, 03:11 PM   #6
Drives: E92 JetBlack
Join Date: Jul 2012
Location: Long island

Posts: 431
iTrader: (1)

The answer is-
Your overboosting or knocking.

With the newer firmwares we have new features...

The Jb4 goes into safety mode and forces itself into map 4 until you restart the car.
look for flashing check engine lights right before it happens, 1 flash is overboost and several is knock.

This is exactly what is happening-
as its defaulting to map 4 and leaving you to OEM map/boost levels.

Put in less e85 and it will most likely help the issue.
Gugs is offline   United_States
Reply With Quote