NX Problems





Had the car at the track last night and it didn't run well. I have 150 system, but only a 75 shot set up on a 96 LT1 in an Impala SS, Walbro fuel pump, Mallory 685 ignition and WOT switch.
I really "felt" nothing as far as boost on the track. Usually I can feel it, but couldn't last night.
Track seemed ok, but hot at race time (107 Degrees).
I refilled the bottle about 6 months ago and only sprayed once at the time to test it, then the car, and the bottle sat hooked up in the trunk.
I figured I had a full bottle, but once I got to the track last night, I really had to sit on the purge to get any No2 to spray out. It finally did, but not much. Bottle pressure was in the green.
I made three runs and the bottle pressure didn't budge. Usually after a run, it will drop down some, but last night nothing, after runs it didn't change.
Symptoms:
A. Slow times (non no2 times)
B. Old bottle
C. Purge takes 4 or 5 long bursts to get some no2 (not much)
D. No change in bottle pressure after runs
Should I stop and take the system apart to test it or is this an old bottle problem ?




