Cobb uninstall now car won't start...Please Help!!

Bjs128 · 06-05-2014, 10:20 PM

Got it worked out....

Subaru335i · 06-06-2014, 09:07 AM

Sooooo whats the story? How did you figure it out?

mashimarho · 06-06-2014, 03:48 PM

Would you like to share? I'm curious..

Bjs128 · 06-06-2014, 04:39 PM

Basically, I was running stage 1 aggressive map on my N55. When I originally flashed it there were no issues and I did not need a battery tender. I am scheduled to bring the car to the dealer tomorrow so last night I go to uninstall back to stock. Everything seems to be going fine and the install said complete. I disconnected the AP and attempted to start the car after shutting it off. When I attempted to start it, the lights and all accessories came on, but the engine would crank but not start and the headlights flashed. Tried to reinstall the Stage 1 map and that still didn't work. Tried disconnecting battery and that didn't work. Tried jumping it via the battery in the trunk with no luck. FINALLY used the "hotspot" negative terminal in the engine bay and was able to jump start it using that.

SO I either drastically drained the battery during the flash OR my dumba$$ may have unplugged the AP once it said install complete before I turned off the car. I really don't recall. Glad I didn't brick my ECU. Hopefully this will be a lesson for others.

06-05-2014, 10:20 PM	#1
Bjs128 Private First Class 7 Rep 150 Posts Drives: 2011 335i Coupe Join Date: Apr 2014 Location: Chicago, IL iTrader: (2)	Cobb uninstall now car won't start...Please Help!! Got it worked out.... Last edited by Bjs128; 06-06-2014 at 12:13 AM..
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06-06-2014, 09:07 AM	#2
Subaru335i Private First Class 1 Rep 175 Posts Drives: 2011 335i 6MT Join Date: Mar 2014 Location: Minneapolis iTrader: (0) Garage List 2007 Subaru WRX [0.00] 2011 335i [0.00]	Sooooo whats the story? How did you figure it out? Last edited by Subaru335i; 06-06-2014 at 10:02 AM..
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06-06-2014, 03:48 PM	#3
mashimarho BimmerPost Supporting Vendor 2108 Rep 13,877 Posts Drives: E92 M3 & F80 M3 & G82 M4 Join Date: Mar 2010 Location: Lynnwood, WA iTrader: (45) Garage List 2021 BMW G82 M4 [0.00] 2011 BMW E92 M3 [0.00] 2015 BMW F80 M3 [0.00] 2012 BMW 335i xDrive [9.78]	Would you like to share? I'm curious.. __________________ Mashimarho.com /// Instagram /// Facebook /// Youtube /// sales@mashimarho.com /// (425) 582-7939
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06-06-2014, 04:39 PM	#4
Bjs128 Private First Class 7 Rep 150 Posts Drives: 2011 335i Coupe Join Date: Apr 2014 Location: Chicago, IL iTrader: (2)	Basically, I was running stage 1 aggressive map on my N55. When I originally flashed it there were no issues and I did not need a battery tender. I am scheduled to bring the car to the dealer tomorrow so last night I go to uninstall back to stock. Everything seems to be going fine and the install said complete. I disconnected the AP and attempted to start the car after shutting it off. When I attempted to start it, the lights and all accessories came on, but the engine would crank but not start and the headlights flashed. Tried to reinstall the Stage 1 map and that still didn't work. Tried disconnecting battery and that didn't work. Tried jumping it via the battery in the trunk with no luck. FINALLY used the "hotspot" negative terminal in the engine bay and was able to jump start it using that. SO I either drastically drained the battery during the flash OR my dumba$$ may have unplugged the AP once it said install complete before I turned off the car. I really don't recall. Glad I didn't brick my ECU. Hopefully this will be a lesson for others.
	Appreciate 0 Quote