Disable adaptive shift learning after Shift Kit Install
Jan 23, 2008 | 07:30 PM
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Disable adaptive shift learning after Shift Kit Install
I placed my order with FLT for a shift kit and other goodies. I allready have both servos, Soooooooo I have read that you need to disable adaptive shift learning after you install a shift kit, is this true? I read that you zero out your shift times, which disables the learning. I have also read that if you don't it will cause your shifts to soften over time. Has anyone else done this?
Jan 23, 2008 | 08:50 PM
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Found these threads
the Shift speed on that table is just telling the trans to try to hit that time during a shift. The shorter the better, but the firmer the shift will be.
If you 0 out that table, then you are just shutting off the adaptive trans learning system. It dont mean you are commanding a 0 second shift..
People with shiftkits are supposed to remove the adaptive shift system. So zeroing out that table is correct.
If not removed with a shiftkit, then the computer sees that the trans is shifting too fast and it will pull pressure " via the adaptive shift system " and try to slow the shifts back down.
That is why guys with a shift kit or modded tranny see the transmission shift really good for a couple miles when they first plug on thier battery. then the trans slowly starts backing down....
If you 0 out that table, then you are just shutting off the adaptive trans learning system. It dont mean you are commanding a 0 second shift..
People with shiftkits are supposed to remove the adaptive shift system. So zeroing out that table is correct.
If not removed with a shiftkit, then the computer sees that the trans is shifting too fast and it will pull pressure " via the adaptive shift system " and try to slow the shifts back down.
That is why guys with a shift kit or modded tranny see the transmission shift really good for a couple miles when they first plug on thier battery. then the trans slowly starts backing down....
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Jan 23, 2008 | 09:17 PM
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Thanks Justin, So after I zero out the tables I can fine tune the base pressures to my liking?
Is there a PID to measure transmission slip. I think I read somewhere that you log engine output vs transmission input, something like that but I can't find the thread....
Is there a PID to measure transmission slip. I think I read somewhere that you log engine output vs transmission input, something like that but I can't find the thread....
Jan 24, 2008 | 08:31 AM
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Zero is it .(Jesse @ Wait4me Performance helped with mine , thanks Jesse .)
Been running a TransGo kit , and zeroed shift times , after the kit you don't really need to do much by way of line pressure the kit does that for you .
If done correctly you probably want want to mess with the trans in the PCM , start with stock settings , except the shift time , that is if you have raised anything for the trans in the PCM (line pressure) .
Been running a TransGo kit , and zeroed shift times , after the kit you don't really need to do much by way of line pressure the kit does that for you .
If done correctly you probably want want to mess with the trans in the PCM , start with stock settings , except the shift time , that is if you have raised anything for the trans in the PCM (line pressure) .
Last edited by HD6.0l; Jan 24, 2008 at 08:59 AM.
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