Help needed! Second opinion on tune and logs

[Keckster]

I've been working with a guy that is apparently pretty well know in the cobalt world of tuning but we seem to have hit a brick wall. He swears that my wideband/narrowband is not working correctly and isn't comfortable helping me tune any further unless its fixed... I have been trying to tune this thing for the last three weeks for an event coming up tomorrow and am beyond frustrated. Would anyone be willing to give me a second opinion on our struggle?

 

[Keckster]

These are the latest attempts at getting the maf calibrated. The tuner is worried about the narrowband signal in the log not oscillating consistently

Mod List:
-Forged & Coated JE pistons (9.5:1)
-ZZP forged 4340 connecting rods
-ATI Damper
-BradBilt balance shaft delete w/ short chain
-82lb valve springs w/ titanium retainers
-ZZP Stage 2 supercharger cams
-Dual bypass endplate
-ZZP shorty Header

 

[Gtstorey]

So about all you have changed that would really affect the tune is cams and headers? Have you changed pulley sizes?

 

[Keckster]

So about all you have changed that would really affect the tune is cams and headers? Have you changed pulley sizes?

Yeah 2.7 pulley and 80# inj. Sorry forgot those in the list. Already scaled for injectors using injector connections data

 

[Gtstorey]

I would post on the HP Tuners forum and see if you can get some help. Unfortunately the GM in-line 4 section is no longer very active but maybe one of the ecotec gurus will help. I’ll try and look at it tomorrow but I probably won’t be much help.
I will say your mods are pretty standard and anyone that calls themselves a tuner and has experience with the lsj should be able to take care of this. So either you have a problem with your o2 sensors or you need to find a different tuner.