Fuel Pressure Indication setup HXr EFIS
Posted: Mon Jan 07, 2019 3:12 am
Is there a different Set-up and configuration for a fuel pressure sender wired directly to a HXr EFIS versus wiring directly to the EFIS as put forth in the VDO Supplemental for the EIS, e.g. scale factor, Aux Off, etc.?
I ask this question because i have a VDO 0-30 psi Pressure Sender wired directly to my HXr via an Analog function and configured as per the supplemental and the Configuration and Set-up Guide for the HX, HS, WS EFISs and pull-up resister ON.
With this configuration, I get 47.4 psi with my system powered up, eng not running. With just the Boost Pump on and or the eng running I get no discernible chg in my reading.
I've reread the HXr Install Manual, the HX, HS, WS Set-up Guide, and delved in depth to the GRT web site with no solution.
Any help and or advice would be greatly appreciated.
George
I ask this question because i have a VDO 0-30 psi Pressure Sender wired directly to my HXr via an Analog function and configured as per the supplemental and the Configuration and Set-up Guide for the HX, HS, WS EFISs and pull-up resister ON.
With this configuration, I get 47.4 psi with my system powered up, eng not running. With just the Boost Pump on and or the eng running I get no discernible chg in my reading.
I've reread the HXr Install Manual, the HX, HS, WS Set-up Guide, and delved in depth to the GRT web site with no solution.
Any help and or advice would be greatly appreciated.
George