[Wet Fish]

I already have a transmission tune, but they (for whatever reason) didn't enable the display of the target gear in the display.

xHP does this, so I'm considering forking out for the basic flash license to enable this feature - but I don't particularly want to change the characteristics of my existing tune.

Does anyone know if the basic flash will overwrite my existing transmission tune?

[suby01]

If youre flashing the transmission. Thats tuning. So no different than what you have now. So yes. Anything new you flash or change will overwrite what you have. You cannot stack different flashes or options.

[Wet Fish]

Originally Posted by suby01

If youre flashing the transmission. Thats tuning. So no different than what you have now. So yes. Anything new you flash or change will overwrite what you have. You cannot stack different flashes or options.

Ah poop. I wasn’t sure if their basic flash changed the actual map - as they charge for maps separately.

I guess I might have to pay for both then. Hmmm, thanks for the info though.

[JDAM40I]

So if I already have a transmission and engine tune, and I want to change the one I have to a better one, do I first have to reset back to factory settings on the computer, or can I just overwrite the map by adding the new one..?

[Wet Fish]

Originally Posted by JDAM40I

So if I already have a transmission and engine tune, and I want to change the one I have to a better one, do I first have to reset back to factory settings on the computer, or can I just overwrite the map by adding the new one..?

Depends. If you are moving from one BM3 tune to another, then no.

But when I went from BM3 to a custom third party tune, they did want me to flash back to stock and then they started from a clean canvas.

[JDAM40I]

How about if i have a costome tune and now i want to move on to the xHP tune, do i have to go back to the stock?

[Wet Fish]

Originally Posted by JDAM40I

How about if i have a costome tune and now i want to move on to the xHP tune, do i have to go back to the stock?

I didn’t and it seems to work fine.

[xnick101]

Originally Posted by JDAM40I

How about if i have a costome tune and now i want to move on to the xHP tune, do i have to go back to the stock?

XHP is the ONLY transmission flash so I am not sure what you have already. If you mean you have a DME flash (bm3, ecutek, mhd) that is not related to the trans dme.

[cyam]

Originally Posted by xnick101

XHP is the ONLY transmission flash so I am not sure what you have already. If you mean you have a DME flash (bm3, ecutek, mhd) that is not related to the trans dme.

I believe that there are tuners out there that promote they do a "TCU/Transmission" tune - but they never really give any details to what they do.

I had a DME tune and the tuner said they can also do a TCU tune and they were charging some big amount for it. They could never tell me exactly what they were doing.

So there are some out there - but I have never been able to figure out what they were doing.

Otherwise to flash the TCU yourself, correct, seems XHP is the only one.

Personally I have been using XHP for about a year. You really don't need any other TCU tune. The options and maps avialable on XHP is all you'll need and you can really tailor the shift points and shift speeds etc so well. If you had another (supposedly) TCU tune, I'd be inclined to just ditch it and use XHP.

If I was ditching a previous tune (either DME or TCU) I would alwasy flash back to stock first and then flash the new tune. On the DME side this will mean re-locking the DME, so you'd need to unlock. I have heard that you can get into trouble flashing a different tune over an existing one. But I do not know for sure.

I had bought some "custom" DME tune that turned out to be bad (EvolveTecknik / PerformancePP) and I ditched it for MHD (1000% better tune) and I reverted back to stock tune, unlocked the DME again and then flashed MHD. I'd do the same with the TCU - but obviously the locking/unlocking is not an issue on the TCU.