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E90/E91/E92/E93 (2006 - 2013)
The E9X is the 4th evolution of the BMW 3 series including a highly tuned twin turbo 335i variant pushing out 300hp and 300 ft. lbs. of torque. BMW continues to show that it sets the bar for true driving performance! -- View the E9X Wiki

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  #1  
Old 10-02-2014, 11:40 PM
Jer928 Jer928 is offline
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Location: California
 
Join Date: Dec 2011
Posts: 29
Mein Auto: 2007 335i
Car running strange lately

Lately my car has been running a bit strange.

The upshifts from 1-2, 2-3 under light throttle in the 2000-3000 RPM range are a little jerky. Feels more like a thump. This happens also in 4th gear as well. The downshifts are also a bit slow and jerky. Car is AT 335i with 88,000. My car has never acted this way before.

Another thing I noticed is that in the mornings, the RPMs used to spike to warm up the engine but that no longer happens.

This strange behavior occurred after I reset the ECU, throttle adaptation, and transmission adaptation with my Bavarian technic cable. At first after resetting the throttle adaptation, the RPMs started surging therefore I had to clear the codes. I read that this surging is common after resetting the throttle adaptation. I've also read on this forum that some members weren't happy with the results after resetting certain adaptations. Is there a way to fix this issue. Does my car need to be re flashed or reprogrammed? There's no codes on the dash or when I scan it with the BT cable.
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  #2  
Old 10-03-2014, 01:59 AM
CALWATERBOY DUE's Avatar
CALWATERBOY DUE CALWATERBOY DUE is offline
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Location: Fog City, California
 
Join Date: May 2014
Posts: 1,222
Mein Auto: 09 E93 335i somewhat mod
Quote:
Originally Posted by Jer928 View Post
The upshifts from 1-2, 2-3 under light throttle in the 2000-3000 RPM range are a little jerky. Feels more like a thump. This happens also in 4th gear as well. The downshifts are also a bit slow and jerky. Car is AT 335i with 88,000. My car has never acted this way before.

This strange behavior occurred after I reset the ECU, throttle adaptation, and transmission adaptation
with my Bavarian technic cable. At first after resetting the throttle adaptation, the RPMs started surging therefore I had to clear the codes. I read that this surging is common after resetting the throttle adaptation. I've also read on this forum that some members weren't happy with the results after resetting certain adaptations. Is there a way to fix this issue. Does my car need to be re flashed or reprogrammed? There's no codes on the dash or when I scan it with the BT cable.

Have you walnut showered your valves?

Wait awhile. It'll adapt.
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  #3  
Old 10-03-2014, 09:37 AM
Jer928 Jer928 is offline
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Location: California
 
Join Date: Dec 2011
Posts: 29
Mein Auto: 2007 335i
Quote:
Originally Posted by CALWATERBOY DUE View Post
Have you walnut showered your valves?

Wait awhile. It'll adapt.
How many miles should I wait?
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  #4  
Old 10-04-2014, 10:16 AM
Jer928 Jer928 is offline
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Location: California
 
Join Date: Dec 2011
Posts: 29
Mein Auto: 2007 335i
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