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R_W_B · Oct 16th, 2011, 08:57 AM

Quote: Originally Posted by Wayne R View Post

Unless I'm mistaken, I'ts my understanding that the TFI overwrites the download anyway, and the download would actually be a waste of money if you were going to use a TFI, I'ts now been well over 1000 miles and my bike's been running great with no issues at all since I re-installed the new TFI,

no plans for any downloads here!!

Quote: Originally Posted by speedyron View Post

dosnt overwrite it just makes it tunable

Yea 'OVERRIDES' would be a more appropriate desciption. It can't overwrite it since it's not a hooked to the ECM. In fact even the piggybacks that are hooked to the ECM don't overwrite the actual ECM, they just intercept the data going to the ECM and manipulate it.

From what I gather of the TFI it ignores the ECM totally and 'ADJUSTS' the injectors directly based on the settings dialed into the TFI. It does intercept the data coming from the ECM to the injectors and overrides it there.

Oct 16th, 2011, 08:57 AM	#15
R_W_B Community Guru Join Date: Oct 14th, 2010 Location: Florida Posts: 2,475 My Mood:	Re: Dobeck TFI Quote: Originally Posted by Wayne R View Post Unless I'm mistaken, I'ts my understanding that the TFI overwrites the download anyway, and the download would actually be a waste of money if you were going to use a TFI, I'ts now been well over 1000 miles and my bike's been running great with no issues at all since I re-installed the new TFI, no plans for any downloads here!! Quote: Originally Posted by speedyron View Post dosnt overwrite it just makes it tunable Yea 'OVERRIDES' would be a more appropriate desciption. It can't overwrite it since it's not a hooked to the ECM. In fact even the piggybacks that are hooked to the ECM don't overwrite the actual ECM, they just intercept the data going to the ECM and manipulate it. From what I gather of the TFI it ignores the ECM totally and 'ADJUSTS' the injectors directly based on the settings dialed into the TFI. It does intercept the data coming from the ECM to the injectors and overrides it there.