IIRC anything over 4 or 500rpm from the ESS will 'tell' the PCM that the engine is running.
It is normal to see the voltmeter fluctuate after starting, its just the grid heaters cycling. they draw 195amps which is obviously more than the alternator output, thus the voltage drop.
__________________
97 Ram 2500 / 5.9ctd /NV4500/241DHD Custom Intake Tube+ BHAF, Pump Tuning, Autometer Pyro and Boost gauges, Dual 4" stacks, posi-lok, One Hella sound system, KDP MIA
, fabtech 5.5" lift, 36x13.5 IROK's, tons more to come
