Im kind of curious as to what is in the PNP wiring to control the FP from the stock ecu plugs? Proprietary? or was it something that is already public....

<-- still has to make his own harness for his MS.... still procrastinating.

 

Most people with DIY setups just jump the AFM connector to run the FP anytime the key is on. For the MSPNP we designed a little transistor circuit to control the FP direct from the ECU.

Thankfully on the 94-95 Mazda came to their senses and started controlling the fuel pump like most other cars... directly from the ECU, and ground switched relay instead of 12v switched...

 

our 96 runs a switched 12V for the FP on standalone cuase we had major relay issues from the previus owners stereo mods etc.