Need help with tune !!

[GETUSUMM]

I have a 2006 vette with H/C/ etc etc. It is an A6 car. I just added a converter (Yank 3200) and retuned it for sea level (car was from up north). When we retuned it, I pickup up 35 rwhp at 5500 and my injector duty cycle went from 85% to around 90%. I went to the track and lost two tenths. The car feels like it falls on its face and doesnt shift right. I looked over the logs and for some reason the fuel trim jumps from a consistant 12 to 33. When this happens, the 02's read almost 0mv. I am also going to attach the log. Could this be a fuel pump issue or is it a tune issue? I did the converter and the tune around the same time. The old tune was very lean so I did not want to put it back in and blow the engine. What could be causing this? Thanks in advance for any help you guys can give.

[EC_Tune]

I would get a fuel pressure gauge to find out for certain before going any deeper. If your fuel pump is dying it could take the engine with it.

[GETUSUMM]

Thanks man. I found out what it was. It was the commanded shiftpoint. It was hitting fuel cut before the shift.

[EC_Tune]

Good to know! Thanks for posting the results. Many threads just end up hanging in mid air wondering what happened to the issue.