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Old 03-06-2013, 08:38 PM
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sct (trans only tune)

so after getting and going through headache of updating sct tuner (thanks taylor at sct) for help.

i dont wanna run hp tune til i get studs because im weird...

what the heck does (trans only) do?

1. sct website doesn't even show it.

2. no luck at all on internet...

this is what i programmed my truck for about 3 hrs ago

tune- trans only
egr off-----does it do anything?
turned (shift firmer) on------what does it do, good or bad for trans? normal driving or only effects when in tow mode on truck etc...

thanks I have looked everywhere no one explains the trans only at all...
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Old 03-07-2013, 07:05 AM
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Trans only tune is used mainly for heavy towing, that said running a canned hp tune without studs is safe. The custom tuners will ask if your studded or not and can build you a better tune than the canned tunes and it will be safe to use. Shift firmer is exactly that it will increase the firmness of the transmission shifts. EGR Off turns off the EGR valve and wont set a code. Under high boost you will still get some blow-by on the EGR valve. BTW I have a trans only tune and I had the programmer use the tow/haul button to set up a Jake brake. Hope this helps.
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