FP/INJ, ECM/IGN, ECM/SOL, CCCI, GAGES, according to the manual IGN 1 on the STBLT/ACC fuse is also hot in start.
Might be too low a voltage while cranking to keep whatever running you need to run, probably down to 8 volts on the battery while cranking use a meter to test it out. And check how many volts you need to keep the device running whilst cranking.