  This is the second paper in a series where we examine the physics of pair
producing gaps in low-luminosity accreting supermassive black hole systems. In
this paper, we carry out time-dependent self-consistent fully general
relativistic 1D PIC simulations of the gap, including full inverse Compton
scattering and photon tracking. Similar to the previous paper, we find a highly
time-dependent solution where a macroscopic vacuum gap can open
quasi-periodically, producing bursts of $e^\pm$ pairs and high energy
radiation. We present the light curve, particle and photon spectra from this
process. Using an empirical scaling relation, we rescale the parameters to the
inferred values at the base of the jet in M87, and find that the observed TeV
flares could potentially be explained by this model under certain parameter
assumptions.
