Adding second map sensor on V3 board - (like Abe did)
 

Hi,

while searching my garage I found a spare Motorola map sensor and I know I already added a second sensor on my first MS2 build.
Now I searched the entire board and cannot find the schematics, how you added the second sensor directly to the original board sensor. Can anyone help me out...

I know you had simply to solder 4 of the 5 pins and add some other parts - but I don't know what and how anymore...

Found it in the MS1 constant barometric correction instructions

http://www.msextra.com/doc/ms1extra/...al.htm#conbaro

https://www.miataturbo.net/attachmen...ine=1328703156

Thanks!

Thanks - done!

BTW does this work better now than in MS1 or MS2?

Yes, since there's a Baro Corrections Curve.

I don't like the idea of the in-cabin baro. Have you seen what the top does when you set the heater fan to 4 and switch to outside air? Yup, more pressure inside the cabin.

in 02 or 03 mazda added a flapper valve to the trunk to let the air out!

well, most of the time I am driving Top down...

would not pressure increase in-bay?

Today I got all the parts and finished my MS3X - everything seems to work nice.

Only the Barometer - realtime baro sensor seems to be a bit "more nervous" than the boards mpa sensor (both read normal air pressure on the bench) - the realtime baro jumps around ~0.3-0.5kPa - the board sensor is very steady... Any idea why? (Circuit is as above)

is there a lag factor setting for just baro? that could be why

who is the brain :brain: here... (and MS3 pro...) you or me. :)