For discussion of Speeduino compatible boards designed / built by other members of the forum and for guidance around making such a board
By usatracy
#66833
Hi,
I have an Speeduino NO2C that I built, it has the onboard MAP

I have another one I am about to build, I am going to put it on a Kohler EFI 33 hp, that obviously already has all the EFI installed.

The Kohler has a map sensor already, so before I build this new NO2C, how do I interface it to the existing MAP sensor on the engine, and should I omit installing the pcb MAP sensor in order to support an external, or can both exist ?

Thanks
engine efi pinout
https://imgur.com/a/mR2DupM

Image
By usatracy
#66835
disregard i figured it out, all the wires needed will come up to the speeduino from the engine, the 5 volts and grounds are taken care of for all the sensors, i just need to jump one wire from the incoming harness, I chose to use the VVT wire, to the square pad marked map on the NO2C and NOT install the actual map sensor onto the board.

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