To be more specific, you will need to feed the MS a o2 sensor and TPS signal from the ECU.

This may not seem like its piggybacked to you but it is. If your looking to use the MS as a extra injector controller and leave the Factory ECU control the primary injectors then you can do that also.

You will still need to connect up the MS the same way but the injector harness will need to connect to the secondary injectors. The VE table you set up will need to be complete as if MS was controlling the primaries too. In the N/A bins of the VE table you will need to input the value "1". MS does not understand 0.

Terry