It won't let me view this because I'm not a member. And I don't speak french so I can't figure it out. Can someone that has the info post it in here for the rest of us. Thanks
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Has anyone figured out how to turn an LED on yet in performance mode? I have a performance mode switch and harness out of a 95 Firebird, although I realize this probably wouldn't help on a LS1 car.
Also I'm doing this on a 99 Vette will I still use the J1-71 pin on the PCM? Or is that only on f-bodies?
Bringing this back up.
I have a customer with HCI LS1 (2000 truck ECU) and he wants to be able to manually shift the trans. I have tuned the trans to run great in Drive, but he also wants to be able to shift it manually and hold gears longer if he likes.
Is the performance switch something that will have to be done or can I use the Upshift/downshift D2 for 2nd and 3rd for this???
Currently if he tries to leave it in 1st it will automatically upshift to 2nd without him doing so.
Back from the dead again lol. Any answers to the above questions?
Lets bump this thread a little, and finally with some results!
I went ahead and followed the french instructions mentioned earlier in this thread to build this circuit, and it works like a charm! (surprisingly :cool: )
Here is the french circuit diagram
Original french thread
And this is my version of it:
https://www.youtube.com/watch?v=bcyWJVb9nno
The link to the wiring diagram is at the bottom of post #30 in this thread .... you may want to read the entire thread.
Hate reviving this old thread yet again... But... Was there ever any discovery made on the ability to use the "Economy Mode" transmission tables in the 98-99 Vortec BlackBox PCM's that didn't use a BCM?
Good Day
Would I need to make the ps mode work for a manual trans?
Ls swoped into a manual pickup. (P01 pcm)
What changes happen during this mode with the pcm?
Thanks
Thank You Rocndav
Time to bring this one back from the dead for Halloween :)
I have a 2001 Silverado ECM (Red/Blue). I want to use the tow/haul performance mode. I have a momentary switch to ground wired to pin 71 on the blue connector. In VCM Editor, under Trans/Shift General I have Perf Option set to One Switch.
Nothing happens when the button is pressed. I have checked all my wiring all the way to the ECM pin. I tried grounding the wire 6" from the ECM. I am monitoring in VCM Scanner using the Trans Performance channel, it always says No.
I tested the wire going to pin 71 and it's putting out 12v. I'm assuming it's some sort of pull-up resistor so it's monitoring for ground. Is this normal? Do I have a bad ECM? Everything else works fine.
Thanks for any tips. :banghead::banghead:
-Beau
Attachment 114635
It might not actually say anything in the scanner. I can't recall mine ever saying "yes" or whatever.
But it definitely works. Try setting the performance trans map wayyyy different from the normal map and see whether it shifts different when you momentary to ground.
This and torque management are my favorite features in the OEM ecu. Aftermarket stand-alone seem useless compared to this simple idea
Someone know about the J1-31 (Two Switch) manual mode?