Suddenly no NO2?
I don't know where else to go from here except to try another solenoid.
Dave, this solenoid is rated for 1100psi. What are yours rated at?
I left the solenoid outlet disconnected but connected the inlet hose. I opened and closed the bottle to charge the line, then I jumpered the solenoid to the battery. It fired and nitrous vented through the outlet. I thought, ok let's go for a drive. Then, I heard a hiss. The solenoid wasn't closing all the way. This is probably the cause for some lean scans I have seen. In any case, I think I need a new solenoid.

