strasser_3

iTrader: (18)

Went to Kansas City to have the car dyno tuned using HP Tuners. The car ran perfect while doing the N/A tune and put down 334whp 342wtq. The problem started when we started to spray the 130 shot. When the nitrous engaged the bank 1 would start around 14:1 a/f and start to richen up pretty quick, then in an instant it would shoot up to about to 18:1 and he would shut it down. When the car comes back down to idle it would misfire for a little bit and eventually smooth out. The entire time Bank 2 would stay around 14:1. We changed the plugs(gap to .030 so they wouldn't blow out), wires, and all the bank 1 coil packs, with no change in performance. Putting 50 shot jets in did not help either. Only code that is coming up is the cylinder misfire code. Any ideas to try.

04 6 speed 38k miles
ported throttle body
under drive pulley
130 shot plate NOS kit
kooks 1 7/8 long tubes off road mids
muffler delete on stock cat back
hard core intake
1-step colder spark plugs
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