Are you seeing 17 Volts in the grey wire going to the pump when in boost?

 

i didnt check the voltage from the grey wire thats a good idea... do you have a tip on whats an easy way to do this

thanks

 

Maybe you could splice into the grey wire that goes out to the pump, connect it to the positive lead of a multimeter and ground the other lead. Have someone watch the meter to see if the voltage increases when you go into boost. If not, something likely isn't connected properly.

 

Did you ever figure out what the deal was? Is it working?