Chance Nguyen

I have an mspnp2 on my 90 Miata. Map sensor reads 0 kpa on tunerstudio Does anyone know where I can find a replacement map sensor? I emailed diyautotune and they mentioned i can send a signal to my 20 pin? Coming from a person with limited knowledge, which one is the 20 pin and which type of sensor allows me to send a signal to the 20 pin and work? Thank y'all for the time. Sorry if this was asked already, I tried searching but couldn't find anything about it.

SpartanSV

MegaSquirtPNP by DIYAutoTune.com

It's all in the manual.

Move jumper 17. Connect external map sensor to pin 19 on the 20 pin connector.

msmola2002

That's for v1.3

For board v1.2 it's this one
MegaSquirtPNP by DIYAutoTune.com
Unfortunately there is no mention of MAP on any of the pins there.

SpartanSV

Yup I missed the version in the title. I wonder if DIY missed the distinction as well. They mentioned the same 20 pin connector which the 1.2 doesn't have.

Chance Nguyen

There does look like there's a map switch jumper post on the board but I'm not sure which pins it decides to use instead of using the mounted map sensor.

SpartanSV

Do you have a multimeter?

Chance Nguyen

So I did some multimeter tests and found out that the map jumper links up to 2o which is the maf sensor signal pin. Re reading the email, I realized it says 2O. In the end DIYautotune helped by sending a replacement map sensor which I resoldered on. Since it was a different sensor it pointed upwards, requiring me to drill a hole through the top to route the map line through.