converter lockup
- Thread starter duratothemax
- Start date
Bu sometimes the converter relocks so fast that you dont feel it.
but it still does unlock, I can almost guarantee it.
log TCC duty cycle % and then do a WOT 5-4 downshift...I bet you'll see it go from 97% to 0% then quickly back to 97%
or wire in a TCC lockup indicator light.
you can change all the tables you want, but there are still some key tables [that we dont have access to] that will override any changes you make to the tables that ARE availible to us.
I dont think people grasp just how little (comparativly) we can really change, and how complicated the TCM and its algorithms are. People think they can fire up EFILive, they see a hundred tables, and think they have the TCM/ECM wrapped around their finger because "wow it looks like a LOT of stuff!!". There is a lot that we cant touch. NOT stabbing at EFILive at all, dont take any offence to this Cindy/Ross/Paul.
:hug:ben
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GMC_2002_Dmax
The Still Master
All it is is an NSBU fooler. Brayden said he made one long before I even thought of it so I cant imagine it would mess anything up. The only thing it can alter is what position the TCM thinks the shifter is in. If it was changing anything, the PRND321 display would change.
I disconnected it just to see, and no change
ben
tony i have not touched TAPS
iirc i set the scaner to log 10 frames a second that is 1 frame per 100millisecond with WOT shift time of 475mS i would see the change in rpm from one solid drop to several steps if the TCC was disengageing then re-engageing.
mind you stock WOT shift time for all gears range form 325-290mS and i am shure it is faster with a co-pilot.
im trying to backpedal to figure out how set that up. probly need a flashcan to do it.
josh if you are asking about mine sure.
iirc i set the scaner to log 10 frames a second that is 1 frame per 100millisecond with WOT shift time of 475mS i would see the change in rpm from one solid drop to several steps if the TCC was disengageing then re-engageing.
mind you stock WOT shift time for all gears range form 325-290mS and i am shure it is faster with a co-pilot.
im trying to backpedal to figure out how set that up. probly need a flashcan to do it.
josh if you are asking about mine sure.
Bu, tony was talking to me, and he was not referring to the TAPS.
Log TCC duty cycle %. You might not see the drop in RPM, but I bet you will see the solenoid turn off, then on again.
ben
FWIW, I WANT tap shift on my 5spd. Seriously, Ben if you ever fully figured it out, I want it. Same for you Brayden. That is just a slick feature!!
C-ya
Seriously, Ben if you ever fully figured it out, I want it. Same for you Brayden. That is just a slick feature!!C-ya
if i could i would.Bu, tony was talking to me, and he was not referring to the TAPS.
Log TCC duty cycle %. You might not see the drop in RPM, but I bet you will see the solenoid turn off, then on again.
ben
if it did disengage it would reflect in rpm during an upshift.You can't log TCC?if i could i would.
FWIW, I WANT tap shift on my 5spd.
C-ya
it works. There are some things I want to change, like if you shift the "real" shifter to neutral, park, or reverse, the tap-shift manual mode automatically shuts off and reverts to normal. Right now this causes issues because the TCM gets confused. I also have to redesign some parts of the circuit because now it doesnt "stop" counting....ie, if you get to 5th gear and press "upshift" again, the counter circuit goes to 6 (or 7, or 8 etc..), and then the circuit returns a wierd signal to teh TCM and the trans limps. Use an AND gate or something, I dunno. Im not an electrical engineer by any means and have no previous knowledge of this stuff. But I wanted to make this tap-shift thing so I just read books and taught myself the necessary stuff for the sole purpose of making this [stupid] thing.
Brayden could make it 10x simpler than mine because he knows how to program those microcontroller chips. I dont; so I had to make the mini-computer the "old fashioned" way with logic gates, voltage compartators (to interperate the signal from the shifter buttons), up/down counters, BCD to decimal decoders, trnasistors, resistors, diodes, and other stuff that makes the whole thing WAYYY more complicated than it needs to be.
The schematic (for the circuit I designed) is really complicated and probably not worth duplicating unless you are using an atmel micro controller or BASIC stamp. I have hours and hours and hours alone into just soldering it together, let alone designing it. A programmable logic controller would work awesome too, but I have no idea how to program those.
truck hasnt ran since 12-24-07
sorry Bu I was not aware that your truck was still down.
I know exactly how you feel...but it will be worth it soon enough when you get 'er running again. :cool2:
ben
sorry Bu I was not aware that your truck was still down.
I know exactly how you feel...but it will be worth it soon enough when you get 'er running again. :cool2:
ben
hasnt moved since dave (the4wheeler) and i rolled it out of his shop. i am waiting on my med discharge paper work and severance pay. plan is 650-700hp if not more... among other things.
and i am keeping the 1056
Good luck on the build. I'm shooting for about 750
4088/4718 duel fuelers stock head and cam... that is what 800+ish? maybe....... i know it is worth 1200-1300hp in air