Ok, so I wired in the launch control on my V2.2 board.
2.2k resistor going from JP1 last pin (+5V) going to JP1/4, and a jumper wire from pin 4 to X14. Pin 31 on my harness goes to a momentary switch that shorts to ground when I press it.
Up to now, I'm thinking everything should be working fine and straight... but when I open megatune, to my surprise, my launch control is exactly inverted.
When I press the switch, it deactivates launch control. When I'm not pressing it, launch control engages.
Anyone know what's up, or a way around this ? I just rechecked my wiring and I'm pretty d*** sure it's all wired fine. Momentary from ground to JP1/4, which is connected to a +5v via 2.2k resistor.
Problems with launch control. Searched and didn't find answe
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Is this on a clutched car or an auto? I tried to use launch on a button in my clutched car and couldn't get it right. I installed a clutch switch (modified brake light switch) and I LOVE IT.
James
James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk
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My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".