Lean Idle issue Fuel Trims maxxed out

[hhoelle]

I have been trying to figure out why when it comes to an idle the LTFT and STFT both are at maximum and the mixture is extremely lean until they bring it down to 14.8 to 15.0. I am running a MAF tune in closed loop with LTFT. The open loop MAF EQ ratio table is set to all 1's but I don't believe it uses that in closed loop??? I am using the STFT+LTFT vs MAF Frequency to adjust the tune. It is almost there another scan or two and it will be right. Can someone look at my files and see if you see anything I am missing or where to possibly look? I am beating my head against the wall.

In the Scan If you start at frame 12911 you can see where I deacellerate and it starts to go lean and then it transitions to idle where it shows it is making corrections and stays around an AFR of about 14.8 to 15.0. The LTFT's are maxxed out and the STFT are moving up almost to maximum. Thanks for any help you can give..

I attached my config, last scan and tune.

[4evervette]

tell us more about ur set up ..what type of air intake ..headers...and have you check for leaks..etc??!

[hhoelle]

My setup is k&n air cleaner setup, cat back exhaust, lysholm 2300 Supercharger, 12lb boost, everything else is stock. Checked for intake vacuum leaks none, runs great except for idle lean. Trims take care of it but their maxed out.

[the1n_only]

You need to put the truck in Open loop, turn off the fuel trims, DFCO and dial in the MAF. There is several write ups on this.

[hhoelle]

Thanks everyone the MAF adjustment did it. Appreciate the help.

[vette_c6]

Thanks everyone the MAF adjustment did it. Appreciate the help.

good job