xHP stage 2

Brucey335i · 08-27-2019, 10:59 AM

Hey guys i just flashed my transmission with xHP stage 2 car drove fine for about a day.. yesterday as i was pulling into my driveway. I got a transmission error on the display.. when i hooked up xHP to look st the faults.. it came up as a shift reduction error for 5th gear... i cleared the codes and nothing as of now... just curious as to why the car would have problems now when there wasn't any at all before

MooreBoost · 08-27-2019, 12:32 PM

May not be related, but did you drive easily for 50 miles to let the transmission adapt?

addictedtoboost · 08-27-2019, 01:21 PM

Quote:

Originally Posted by Brucey335i

Hey guys i just flashed my transmission with xHP stage 2 car drove fine for about a day.. yesterday as i was pulling into my driveway. I got a transmission error on the display.. when i hooked up xHP to look st the faults.. it came up as a shift reduction error for 5th gear... i cleared the codes and nothing as of now... just curious as to why the car would have problems now when there wasn't any at all before

You have to drive casually for minimum of 50 miles after you flash xHp transmission tune.

08-27-2019, 10:59 AM	#1
Brucey335i Enlisted Member 4 Rep 48 Posts Drives: 79’ 528i \| 03’ 325i\| 07’ 335i Join Date: Jun 2019 Location: Orlando iTrader: (0)	xHP stage 2 Hey guys i just flashed my transmission with xHP stage 2 car drove fine for about a day.. yesterday as i was pulling into my driveway. I got a transmission error on the display.. when i hooked up xHP to look st the faults.. it came up as a shift reduction error for 5th gear... i cleared the codes and nothing as of now... just curious as to why the car would have problems now when there wasn't any at all before
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08-27-2019, 12:32 PM	#2
MooreBoost Stand-up Philosopher 75 Rep 184 Posts Drives: '10 E90 335i Join Date: Feb 2014 Location: Bradenton, Florida iTrader: (0)	May not be related, but did you drive easily for 50 miles to let the transmission adapt?
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