JB4 Switching maps on own

[LinkA8A0A]

I noticed that my car felt slower today so I opened up the maps with the steering wheel control and saw it was on map 4 (never put it on map 4, ever), so I move it to map 5, and drive to the next light and check it again and it switched itself back to map 4. I'm sure I was out of the menu, so has anyone else had this issue of JB4 switching maps on its own?

[Traf]

It's a JB4 protection feature, you know so you won't blow your engine up.

[dtla1]

What the person above me said.

There's a thread on the n54 tech forum about this. Also, the service engine soon light should flash X number of times depending on what it is protecting you from.

[mike@x-ph.com]

JB4 switches to map 4 if 1- your car is running very lean or 2- car is dangerously overboosting.

Either way you need to send logs to Burger tuning so they can figure out what is causing this issue.

Are you running too much E85?

[ShocknAwe]

Could be on old firmware with a normal amount of E85 in the tank, boosting over the user defined failsafe. You used to have to adjust that up manually.

That said, OP you need to do a log and find out why it's knocking you down to Map 4.

[LinkA8A0A]

Gotcha, I do run e85. 30%. I have jb4, a berk race exhaust, and an evo cp. I'll have to log it and see. Thanks for the info.

[LinkA8A0A]

Originally Posted by dtla1

What the person above me said.

There's a thread on the n54 tech forum about this. Also, the service engine soon light should flash X number of times depending on what it is protecting you from.

That's weird because it hasn't flashed the service engine soon light, I'll have to run a log. Thanks for the info.