I need some help. I'm having the strangest problem, I'm trying to build an SX350j V2
mod.
It's a dual 18650 3D printed mod. I know most here are more Evolv oriented, but I know a lot of smart people read this thread.
If I put the mod together & try to fire it, it don't fire

the chip appears to be working fine.
It turns on, it goes through the menus every thing appears fine, even if I fire the button it looks like it's firing, If I hold both up & down it reads the resistance correctly
If I take the chip out of the enclosure & just solder a battery sled & 510 to it, it works.
I put a meter on the 510 & it's only reading 2.5 volts when firing, if I hold the fire button the voltage goes down, on the battery sled, in the mod I'm getting 8.4 volts.
I tried 2 different chips they both do the same thing, work fine out of the enclosure, don't fire in it.
What could be going wrong?
Any suggestions /help is appreciated
