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      11-11-2012, 06:30 PM   #1
Enlisted Member

Drives: 2010 335i AT
Join Date: Aug 2012
Location: Daytona Beach

iTrader: (3)

Limp mode 30FF Boost leak Questions

Last night I decided to use the JB4 Performance Tuner while on the highway to check some stats. I am running map 5 with about 2.5g E85/rest 93 and the car was running strong.

1st run
pulled onto highway, floored to 90ish, glide 60 and back to 90ish x3, then off ramp

2nd run
same routine

3rd run heard a loud pop on WOT, limp mode to the house.

Found the problem

I'm currently searching for the cause of this issue, I clamped the hose back on and checked the codes and everything looked good, but of course won't hold.

I've read about people dropping their car off for basic service with the JB4 still installed on map 0. Is this repair considered basic or should I remove the JB4 before dropping it off.

I own a 2010 335i, but everything I discuss on this forum refers to my friends 2010 335i. He doesn't like computers.