Special Delivery
Well Known Member
RV-12iS - Low voltage to fuel pumps...
Independently, fuel pumps #1 & 2 run at reduced rpm and pressure.
All other electrical devices operate normally; starter, lights, radios, etc.
ECU emergency power switch ON (direct battery) helps some.
Also experiencing ECU ‘ignition’ related fault codes... suspect may be caused by whatever is causing low voltage to fuel pumps.
*Latest changes to electrical system (prox 50 hrs ago): Installed new HIC module AV-60009-2 and Ignition Module Firmware Update ES-60016-7.3
Verified battery condition 100%
Verified ground connections; battery to case, case to airframe, Rotax fuse box/regulators A&B, etc.
All connections on HIC and Rotax fuse box verified tight and/or re-seated.
All connections on back of fuse/switch panel verified tight and/or re-seated.
I'm at a loss as to cause... any help out there?
Independently, fuel pumps #1 & 2 run at reduced rpm and pressure.
All other electrical devices operate normally; starter, lights, radios, etc.
ECU emergency power switch ON (direct battery) helps some.
Also experiencing ECU ‘ignition’ related fault codes... suspect may be caused by whatever is causing low voltage to fuel pumps.
*Latest changes to electrical system (prox 50 hrs ago): Installed new HIC module AV-60009-2 and Ignition Module Firmware Update ES-60016-7.3
Verified battery condition 100%
Verified ground connections; battery to case, case to airframe, Rotax fuse box/regulators A&B, etc.
All connections on HIC and Rotax fuse box verified tight and/or re-seated.
All connections on back of fuse/switch panel verified tight and/or re-seated.
I'm at a loss as to cause... any help out there?
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