View Single Post
      02-25-2014, 02:22 PM   #8383
lfpontes
New Member
0
Rep
5
Posts

 
Drives: 335i E90 - AMS DP, COBB, BOV
Join Date: Feb 2014
Location: Brazil

iTrader: (0)

HELP!

Hello,

I own a 335i E90 N54 auto here in Brazil.. It has AMS DP, K&N inbox, COBB, and AA BOV .

Everytime I change my current map with the cobb system, the car seems to be stuck in 2nd or 3rd gear for a while, and suddenly it drops to 1st after a few ft of driving and everything stays normal.
This only happens right after I switch the map, when I turn on the car. And only one time every time the map is switched.

Also, if I select Reverse before the car has dropped to 1st, there is a big CLUNK noise coming from the transmission.

Why does this happen? I cant seem to find any plausible answers on Google or any other source. Also, the car missfires a little bit in its first start in the morning.


Thanks guys!