Help my friend tune afc with logs

[97GsXfreak]

I'm posting this for a friend because he is a newbie and can't post in here so can you guys help him out..... The car will not hold and hits fuel cut as shown. The boost is at 18psi. The car was floored the whole time and when fuel cut hit i did not let off.log went to 6800rpms.. The car is a dog and was faster when i had no fmic or piping at 21psi...

big 16g, 550`s, 255lph, ported mani/o2, fmic

RPM, Timing, O2 1 Bank 1,
2708.0, 29.0, 0.72
2804.0, 20.0, 0.92
2932.0, 10.0, 0.96
3076.0, 9.0, 0.98
3232.0, 7.0, 0.98
3460.0, 4.0, 0.96
3664.0, 5.0, 0.96
3884.0, 7.0, 0.96
4120.0, 8.0, 0.96
4392.0, 9.0, 0.96
4608.0, 9.0, 0.96
4828.0, 9.0, 0.96
5224.0, 10.0,0.02
5420.0, 13.0, 0.96
5628.0, 14.0, 0.04
5952.0, 15.0, 0.96
6796.0, 16.0, 0.96
6292.0, 16.0, 0.96

AFC
2800 -0
3400 -2
4000 -2
4600 -4
5200 -4
5800 -5
6400 -7
7000 -8
7600 -7

 

[97GsXfreak]

Here are some more logs for reference. ALL pulls hit fuel cut starting at 4500rpms in and out numerous times. Each pull was with different AFC settings noted at bottom of each log.

RPM, Timing, Airflow, O2 1 Bank 1
3076.0, 34.0, 2.85, 0.74
3224.0, 16.0, 8.78, 0.94
3408.0, 9.0, 12.98, 0.96
3712.0, 5.0, 17.9, 0.96
4020.0, 7.0, 19.62, 0.94
4396.0, 9.0, 22.24, 0.94
5124.0, 9.0, 24.49, 0.96
4964.0, 9.0, 27.1, 0.94
5720.0, 11.0, 28.28, 0.92
5588.0, 13.0, 29.62, 0.96
5800.0, 14.0, 32.26, 0.94
6252.0, 16.0, 31.59, 0.94
6516.0, 16.0, 34.01, 0.94
6760.0, 22.0, 30.68, 0.94
7056.0, 16.0, 34.11, 0.94
7244.0, 16.0, 33.73, 0.94
<>
2800 -0
3400 -2
4000 -3
4600 -4
5200 -6
5800 -9
6400 -11
7000 -12
7600 -11

RPM, Timing, Airflow, O2 1 Bank 1,
2912.0, 10.0, 9.31, 0.94
3168.0, 8.0, 12.34, 0.96
3456.0, 4.0, 15.88, 0.96
3772.0, 5.0, 17.44, 0.96
4120.0, 8.0, 20.04, 0.96
4520.0, 9.0, 22.82, 0.96
4504.0, 9.0, 25.09, 0.96
5172.0, 10.0, 27.45, 0.96
5208.0, 13.0, 28.65, 0.96
5688.0, 11.0, 29.64, 0.96
5832.0, 15.0, 33.52, 0.94
6304.0, 20.0, 29.95, 0.96
6664.0, 16.0, 33.7, 0.94
<>
2800 -5
3400 -10
4000 -10
4600 -10
5200 -10
5800 -10
6400 -10
7000 -10
7600 -10

**Boost leak test done, spark plugs gapped to .028... Very confused...Take fuel out..

Should i do a run with -15 across all the high throttle???

 

[dsmsucks]

Does your friend have an AFPR? If not get one!

 

[1990EclipseGSX]

In the last log it looks like you are knocking at 5200 based on your timing. I would add some fuel back in that area.

 

[spyderturbo007]

Did you verify that the TPS is >90% ?

Assuming that you are talking about a 2g, go right to -15% and make a pull. Do not pass go, do not collect $200.

Oh, and are you sure that it's FC? If it is FC, it should feel like you just ran into a brick wall.

EDIT -> dsmsucks is correct, you should invest in an AFPR.

 

[CanadianTSi]

Take your very last posted log and change everything from 3400 on up to -15.