'06 6speed tuning inconsistancies
Anyone else having trouble with basically all of the tables' speeds for shifting and TCC control not matching even close to what the VSS reads? This makes tuning extremely hard because none of what is in the tables has anything to do with actual speeds. And not only that we can't even log (BBL or pass-thru) the VSS through the TCM, so we have no idea what speed the tcm thinks it's going.
Making changes by only a "unit" (which is what i'll call it) or 2 in reality is like a 3-6 mph change. I don't get it.
Inconsistancies NO LONGER inconsistant.
After about an hour of messing in the the Speedo stuff in the TCM, all of the shift point and tcc lockups match to real-world speeds and are no longer numbers without meaning.
(ALLY 6SPEED BTW) 5 speed is a different beast.
I changed H0103 to 3.73, inserted my real tire revs/mile (matching the ecm), then used the "shift point correction" calculator to get the new shift points. I did this by knowing my 5-6 part throttle up-shift is 60 mph (real world)and it was 51 (in the tune) at 30% tps. so i took the % difference and inserted that into the calculator to convert all of the bogus (stock) shift point to real world numbers. Then the last thing i did was drive it to see if it was right and it wasn't it was holding the 5-6 shift for and extra 4mph. so i took that % error and adjusted H0137 (Vehicle Speed Ratio), it was a shot in the dark because i had no idea what that table does and the description is kinda lame, but it worked non the less.
So now all my shift point match my speedometer!