Flashing back to stock ECU code - BMW 3-Series (E90 E92) Forum

akira42 · 04-10-2009, 12:05 PM

How does BMW tell that you've flashed back to stock code. I'm assuming they use some kind of checksum. Anybody know?

RambleJ · 04-10-2009, 12:10 PM

Flashed back to normal from what? Dinan?

akira42 · 04-10-2009, 12:20 PM

Yea, or any flash tune. I'm just curious.

RambleJ · 04-10-2009, 01:56 PM

Well if its going back to stock from a Dinan, BMW already has on file that you have had the Dinan flash on your car and your car cannot be CPO'd, I am not too sure about any other ECU flashes though..
Maybe someone who has a flash can jump in.......

akira42 · 04-10-2009, 02:17 PM

I thought that even though you flash it back, their still able to tell. I was hoping to get a little info on this.

ragingclue · 04-10-2009, 02:19 PM

You could ask Jim.

He's in the other thread lol.

04-10-2009, 12:05 PM	#1
akira42 Private First Class Drives: 2007 335i 6MT, Custom Flash Join Date: Feb 2009 Location: Newport Beach, CA Posts: 184 iTrader: (1)	Flashing back to stock ECU code How does BMW tell that you've flashed back to stock code. I'm assuming they use some kind of checksum. Anybody know?
	Tweet

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

04-10-2009, 12:10 PM	#2
RambleJ Lieutenant Colonel Drives: F10 535i M-sport Join Date: Oct 2008 Location: Back in teh so cal Posts: 1,912 iTrader: (2)	Flashed back to normal from what? Dinan?

04-10-2009, 12:20 PM	#3
akira42 Private First Class Drives: 2007 335i 6MT, Custom Flash Join Date: Feb 2009 Location: Newport Beach, CA Posts: 184 iTrader: (1)	Yea, or any flash tune. I'm just curious.

04-10-2009, 01:56 PM	#4
RambleJ Lieutenant Colonel Drives: F10 535i M-sport Join Date: Oct 2008 Location: Back in teh so cal Posts: 1,912 iTrader: (2)	Well if its going back to stock from a Dinan, BMW already has on file that you have had the Dinan flash on your car and your car cannot be CPO'd, I am not too sure about any other ECU flashes though.. Maybe someone who has a flash can jump in.......

04-10-2009, 02:17 PM	#5
akira42 Private First Class Drives: 2007 335i 6MT, Custom Flash Join Date: Feb 2009 Location: Newport Beach, CA Posts: 184 iTrader: (1)	I thought that even though you flash it back, their still able to tell. I was hoping to get a little info on this.

04-10-2009, 02:19 PM	#6
ragingclue My interior is turrible Drives: stickferanaxle Join Date: Oct 2008 Location: mulletville Posts: 6,667 iTrader: (1)	You could ask Jim. He's in the other thread lol.