Fuel Flow with EFII

Help from someone who knows. I am getting no fuel flow reading. I have the white fuel flow wire from the EFII connected to the white / green wire on my GRT EIS. Fuel flow reads 0.0. I have software version 44V86 on the EIS.

I will call both GRT and FlyEFII tomorrow, but I am hoping someone else has run into this and might know.

EFII fuel flow

Hi Spence,
I know you already figured this out. But for others:
GRT has a pulse width option on their fuel flow input which allows their engine monitors to directly take our Fuel Flow signal and drive their fuel totalizer/fuel flow functions.

Robert Paisley