EFIDynoTuning Forum

Does anyone know where i can find the switch assembly for the F3v2? I have all the other components to finish my system, except the switch assembly to switch between tunes.

Or know where i can find a wiring diagram to make one or solder something in? All i found was a writeup of how to do it on the original F3, but is was a different circuit board.

It's pretty simple, how many tunes do you want to use? If you just have a couple you could do it with a single toggle switch. You're just connecting pin zero to pin one

Just buy the SCT chip switch and cable, it'll work the same way. Just small.

PN 6601 and 6602

i just didnt want to spend another $250. I just need two tunes. How do i tell which pin is which?

Is zero the top or bottom from this view?

rusty_lawrence wrote: ↑2022 Dec 16, 16:19 i just didnt want to spend another $250. I just need two tunes. How do i tell which pin is which?

Well, I've seen the switch for like 16 bucks. No need to buy the chip too.

oh sorry.. i didnt realize what you meant. So you're saying the SCT 6601 cable will plug into the F3V2. just get the cable? got it

rusty_lawrence wrote: ↑2022 Dec 16, 16:34 oh sorry.. i didnt realize what you meant. So you're saying the SCT 6601 cable will plug into the F3V2. just get the cable? got it

Well cable and switch. I no longer can get them from my WD but they're out there.

Below is from the moates.net support site. Just put a switch between ground and A0. Program one bank with switch off and another with switch on.
Manual Switching
Like its F3 predecessor, it is possible to manually switch between programs with the F3v2.

Couple things to remember:

At our sole discretion, custom wiring for switching may void your warranty.
The connector is a Molex latching 4 pin 0.1″ header with male pins, very common. You can buy a latching 4 pin female header from the usual sources or buy short cables from us to cut up.
Do NOT feed voltage into the F3v2!!! GROUND ONLY!
The 4 pin header consists of GND, A2, A1, A0. Whenever possible, use the GND provided on the header NOT a chassis ground!
“1” (high, floating, open, unconnected) is the default state. “0” (GND) on a pin changes that address bit
Tunes are binary format, i.e. 000, 001, 010, 011, 100, 101, 110, 111. “0” on the switch is generally “111” and “8” on the switch is generally “000”
If you use a switch or otherwise to ground pins automatically (nitrous?) to switch tunes while the vehicle is running, you must also remember to ground the same pin(s) during programming.

Perfect! Got a few options now. Thank you