Quote:
Originally Posted by 87chevy.com
I tested it on the bmw x5 build i am doing now. 2019 l83 w/6L80 but have been pre occupied to work on it since December time. Hp tuners detected tap up and tap down correctly. I dont have coolant or power steering fluid in it yet, so I only ran it for a few minutes. Game plan is to finish the itty bitty little bit of exhaust welding that needs to get done so I can finanly put it on the ground and test drive it.
Next time I fire it up, I will connect hp tuners and read the shifter tap up/down and see what the transmission does and update.
not sure about the voltage thing you talked about, can you post a picture of how its wired?
the transmission will get the different voltage from the "switch" signal wire when it is in tap up and tap down mode
clint
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You can't see the TUTD on my HP Tuners. It will show P,R, then neutral for all gears after unless the truck is running. I saw one time in the shifting mode option on HP, it said TUTD WOT, but it normally reads Normal.
As for the voltage, I am wondering if the voltage is varying. All the resistors do is vary the voltage, but if I am inputting 14 volts and run it through the resistance chain, I might get 10 volts versus if I run 12 volts through and get 8 volts. I am wondering how touchy the trans might be on needing a very specific voltage for the TUTD to work.
Since you have a 6l, when I shift through the gears, it works like this:
Park
Reverse
Neutral
D6 (Automatic shifting to 6th gear)
D4 (Auto shifting to 4th gear)
D1 (Stays in 1st)
D2 (Auto shift 1-2)
Is this correct? This is the dumbest thing I have ever used. If you use D2, you have to go back into D1 to get to D6.
Thanks, Ron