negative ltft and positive stft after cam swap

Like the title says. Short terms are showing positive but the long terms are buried negative. I pulled some fuel out using ANN method and it runs worse. I'm guessing the ltft are wrong? Do I need to hook a wide band up here already? Just trying to get it running right before it hits the dyno. Could the o2s be trash? Attachment 102086Attachment 102087

Quote:

---

Originally Posted by JASON11WS6

Like the title says. Short terms are showing positive but the long terms are buried negative. I pulled some fuel out using ANN method and it runs worse. I'm guessing the ltft are wrong? Do I need to hook a wide band up here already? Just trying to get it running right before it hits the dyno. Could the o2s be trash? Attachment 102086Attachment 102087

---

Your tables don't match. bold must match in each table

inj pulse width vs fuel mass and fuel mass vs inj pulse width. this one you open by clicking side, then paste in.
https://i.imgur.com/qMzabmml.jpg

I'll try that again. Forgot about the inverse table.

I updated them and I'm still gettin the same issue

That's a vct problem turn off nn and all vct tables to be able to make adjustments on your ve. Otherwise the vehicle will pull major timing because your cams moving and causing fuel swings. Or work with the new nn tuner up to you

I think we had one of the o2s switched around. It dialed right in after that. Now we need to fix the idle