Help reading data log

[rtenzo02]

If possible can anyone with experience give me some info on this log. Showing long term fuel trim very negative. Can it be the 91 perf cai tune ? Or will it not affect part throttle fuel trims ? Ive added fuel to WOT and pulled a little timing at WOT to manage knk. Thanks in advance. Any ideas to get my tune closer to where it should be ?

2010 challenger 5.7
Mopar cai. Extended into fender
Relocated A.I.T sensor
BBK shorty headers
Muffler/res delete (cats only)3 inch pipe out the back.
Catch can
Diablo trinity / 91 perf cai (1r13k)
91 octane fuel

[rtenzo02]

Anyone?

[mikel]

you likely need a custom tune if you want to bring them in line. some of the changes you have made may affect fueling enough to throw the trims off a bit.


Thanks