• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

Lean LTFT!

IIRC the '97-'98 MAF's are different than the '99+ MAF's...which is why it is acting up. The deal with the running rich...do you have your lower o2 sensor deleted? That might be why...because '02+ cars need the second o2.
 


No everything is stock as far as the O2's. After driving it for about 15 min i swapped my old one back and now im back where i started with it haning around 10.1. Something else that is kinda strange with my tune is when i fill up with BP 93 my LTFT hung around 10.1 but i just recently went upnorth and all i could find was BP 92 so i filled up. With the BP 92 my LTFT came down to about 3-5 but everytime i would get on it like passing someone my LTFT drop around -7 to -14 and stay there for about a mile or so before coming back up. Whats the deal with my car?
 
I checked multiples of times praying i find one with no luck. I even hooked up a smoke machine and shes air tight. Also why does it make such a dramatic change when i use lower octane gas?
 
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