TCC Lower temp limit or KTCCTMPL
- Thread starter sy#2921
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sy#2921
BAMF
Re: TCC Lower temp limit table
Re: TCC Lower temp limit table
to add to this some more. I opened the same bin of mine in Promgrammer to check this and it is labeled in degC and also a completely different value.
Tunerpro says 254sec
Promgrammer says 150.5 deg C
This is 00D0 or KTCCTMPL
Re: TCC Lower temp limit table
to add to this some more. I opened the same bin of mine in Promgrammer to check this and it is labeled in degC and also a completely different value.
Tunerpro says 254sec
Promgrammer says 150.5 deg C
This is 00D0 or KTCCTMPL
sytyguy
Moderated User
Re: TCC Lower temp limit or KTCCTMPL
It's based off temp. This will control the temp cut-on point for TCC lockup. Lower to make TCC lockup earlier (coolant temp wise) and raise to make TCC lockup later (likewise). Other variables are:
KRSHNTHK - Upper MPH lock limit (point where TCC locks - mph based)
KRSHNTLK - Lower MPH lock limit (point where TCC unlocks - mph based)
F42 - Upper lock load limit (# represents TPS % that will unlock TCC if exceeded)
F43 - Lower lock load limit (# represents TPS % that will unlock TCC if dropped below)
Remember that (like most controls in the GM ECM) many of these values are transparent and have a few prerequisites in order to lock the TCC (gotta be within CTS range, MPH range, and TPS range, etc...).
Hood
It's based off temp. This will control the temp cut-on point for TCC lockup. Lower to make TCC lockup earlier (coolant temp wise) and raise to make TCC lockup later (likewise). Other variables are:
KRSHNTHK - Upper MPH lock limit (point where TCC locks - mph based)
KRSHNTLK - Lower MPH lock limit (point where TCC unlocks - mph based)
F42 - Upper lock load limit (# represents TPS % that will unlock TCC if exceeded)
F43 - Lower lock load limit (# represents TPS % that will unlock TCC if dropped below)
Remember that (like most controls in the GM ECM) many of these values are transparent and have a few prerequisites in order to lock the TCC (gotta be within CTS range, MPH range, and TPS range, etc...).
Hood
sy#2921
BAMF
Re: TCC Lower temp limit or KTCCTMPL
Thanks Hood for clearing it all up. I guess when mine is set at 150degC according to promgrammer it would explain why my TC wouldnt lock up except when manually done.
Now I just need to figure out how to correct the error in tunerpro so it not only reflects the correct unit but also the correct value per my last post that jeff is looking into.
I just also took a look at the two other values you mentioned Hood and noticed a difference between tunerpro and promgrammer.
KRSHNTHK and KRSHNTLK are both 15 mph higher in tunerpro than promgrammer on the same bins. The tables f42 and f43 are the same except for promgrammer dropped anything past the decimal point
Which would would be correct?
Thanks Hood for clearing it all up. I guess when mine is set at 150degC according to promgrammer it would explain why my TC wouldnt lock up except when manually done.
Now I just need to figure out how to correct the error in tunerpro so it not only reflects the correct unit but also the correct value per my last post that jeff is looking into.
I just also took a look at the two other values you mentioned Hood and noticed a difference between tunerpro and promgrammer.
KRSHNTHK and KRSHNTLK are both 15 mph higher in tunerpro than promgrammer on the same bins. The tables f42 and f43 are the same except for promgrammer dropped anything past the decimal point
Which would would be correct?
Last edited:
turbodig
Active member
Re: TCC Lower temp limit table
Re: TCC Lower temp limit table
Which XDF revision are you on...?
There's both, actually... a temp threshold that's basically a "global enable", ie, if the engine temp isn't at least X, none of the other enable conditions will cause a lock. This needs to be changed if you live in cold climates and have a lower than stock thermo. It can screw up a TCC clutch if it's wrong on a cold day.
The other is a lock delay when contitions are met - ie, all the temp, load, tps conditions are right; the lock will occur after X seconds. (provided the conditions are still met).
The delay is useful in changing the WOT lockup MPH... you can pretty much make it lock up wherever you want. This can do odd things to your part throttle lockups, so it's something I only mess with in race-only apps.
Re: TCC Lower temp limit table
sy#2921 said:
Which XDF revision are you on...?
There's both, actually... a temp threshold that's basically a "global enable", ie, if the engine temp isn't at least X, none of the other enable conditions will cause a lock. This needs to be changed if you live in cold climates and have a lower than stock thermo. It can screw up a TCC clutch if it's wrong on a cold day.
The other is a lock delay when contitions are met - ie, all the temp, load, tps conditions are right; the lock will occur after X seconds. (provided the conditions are still met).
The delay is useful in changing the WOT lockup MPH... you can pretty much make it lock up wherever you want. This can do odd things to your part throttle lockups, so it's something I only mess with in race-only apps.
sy#2921
BAMF
Re: TCC Lower temp limit or KTCCTMPL
I am on 58_2&3Bar_Beta_0.9.1.xdf
Dig, I see two different tables that would explain what you are saying about a global value to enable TCC lockup then a delay table for when conditions are met to lock but what is confusing is the fact that this is the same value address $00D0 so they should be the same between bin editors.
I am on 58_2&3Bar_Beta_0.9.1.xdf
Dig, I see two different tables that would explain what you are saying about a global value to enable TCC lockup then a delay table for when conditions are met to lock but what is confusing is the fact that this is the same value address $00D0 so they should be the same between bin editors.
turbodig
Active member
Re: TCC Lower temp limit or KTCCTMPL
Right click on the temp item. Select Edit item XDF info. Go to the conversion tab. Click the little edit button by the top box. Paste the formula below in:
0.749020 * X + -40.000000
Go back to the General Tab. In the box that says "Units" Type in Deg. C.
Click Ok.
Go up to the Main XDF menu at the top, and do a "Save XDF".
You're done. Enjoy creamy correct-TCC-temp-formula goodness.
This is fixed in the 0.9.3 xdf.
sy#2921 said:
Right click on the temp item. Select Edit item XDF info. Go to the conversion tab. Click the little edit button by the top box. Paste the formula below in:
0.749020 * X + -40.000000
Go back to the General Tab. In the box that says "Units" Type in Deg. C.
Click Ok.
Go up to the Main XDF menu at the top, and do a "Save XDF".
You're done. Enjoy creamy correct-TCC-temp-formula goodness.
This is fixed in the 0.9.3 xdf.
