Holley sniper failure, this time its all bad.

what was in the filter? If the oil thinned, perhaps it didnt do any damage as you only had it running a low RPM for what maybe 5-6 minutes? The injectors usually fire when grounded, so if you had a grounded harness, it could possibly cause the injector to go open. Seems the Sniper should have a fail safe if it sees the rail pressure drop with an RPM (NONE) mismatch..Dont know how smart they are but that's a safety feature from high pressure pump EFI day 1: no CPS RPM detected, no fuel pump relay power after 2-3 seconds.