map sensor cheating?

[Ivan141]

I doubt there is a cheap and easy way to fix it.
That being said, I have a hobby project that is basically a PCB with 4 individual MAP sensors on it, that would then be connected to each runner individually.
The thing with ITB's is that only 1 cylinder at a time is creating a decent vacuum signal, if you T them into a small vacuum manifold you are basically dampening the signal out and it will still not resemble a proper plenum. The idea with the 4 sensors is to pass along the strongest signal at any time, which should result in a much more robust signal.

Anyhow, I've put my first prototype together and as is the tradition it has been a massive pain in the ass. Put on any single sensor and it works fine, put 2 or 3 and it works fine. Put on 4 and 1 sensor starts tripping balls. Have put it away for the summer as finding the cause of these issues can be frustrating.
If I can iron out the issue, you could in theory make it output any kind of signal you want as long as its between 0 and 5 volts as I have a microcontroller on the board.