[logger] possible fuel cut?

[bwain]

ok here is what i have
90' GSR-4(GSX ### version) w/ 100K miles stock motor

3" Downpipeback w/ removed CAT
2.5" stainless steal UICP
walbro 190
Autometer Boost gauge.
Boost 12psi
everything else is stock.

I went out for a logging for the first time after stock. i did twice of 3rd gear pull. Both hitting strange fuel cut(of sort) car jerks around 6500RPM. Can anyone tell me if something going wrong? here is 2 runs both WOT at 3rd gear

Intake Temp : 55-57 celcius

TIMA ACLE O2-R ERPM KNCK INJP
6.00 37.74Hz 0.12V 781.25rpm 0 2.05ms
6.00 94.35Hz 0.10V 1000.00rpm 0 4.10ms
23.00 144.67Hz 0.16V 1718.75rpm 0 3.33ms
28.00 132.09Hz 0.53V 1531.25rpm 0 3.33ms
25.00 125.80Hz 0.64V 1375.00rpm 0 3.58ms
21.00 125.80Hz 0.57V 1187.50rpm 0 3.84ms
19.00 132.09Hz 0.41V 1218.75rpm 0 4.10ms
21.00 144.67Hz 0.64V 1437.50rpm 1 3.58ms
23.00 144.67Hz 0.70V 1593.75rpm 0 3.33ms
27.00 144.67Hz 0.62V 1718.75rpm 0 3.07ms
29.00 150.96Hz 0.33V 1906.25rpm 0 3.07ms
32.00 150.96Hz 0.33V 2000.00rpm 0 2.82ms
33.00 144.67Hz 0.70V 2062.50rpm 0 2.82ms
34.00 144.67Hz 0.72V 2156.25rpm 0 2.56ms
34.00 144.67Hz 0.47V 2218.75rpm 0 2.56ms
35.00 144.67Hz 0.20V 2312.50rpm 0 2.56ms
35.00 100.64Hz 0.18V 2343.75rpm 0 1.54ms
38.00 37.74Hz 0.18V 1937.50rpm 0 0.00ms
36.00 37.74Hz 0.06V 1406.25rpm 0 0.00ms
24.00 56.61Hz 0.00V 968.75rpm 0 3.33ms
19.00 182.41Hz 0.00V 1625.00rpm 0 4.86ms
23.00 226.44Hz 0.00V 1812.50rpm 0 5.12ms
23.00 226.44Hz 0.16V 1593.75rpm 0 6.40ms
19.00 283.05Hz 0.35V 1750.00rpm 0 7.17ms
19.00 339.66Hz 0.66V 1968.75rpm 0 7.42ms
19.00 377.40Hz 0.82V 2218.75rpm 0 7.17ms
21.00 459.17Hz 0.86V 2468.75rpm 0 7.42ms
20.00 553.52Hz 0.86V 2718.75rpm 0 7.42ms
19.00 698.19Hz 0.86V 3031.25rpm 0 11.52ms
18.00 930.92Hz 0.90V 3406.25rpm 0 13.57ms
16.00 534.65Hz 0.90V 3687.50rpm 0 2.05ms
37.00 194.99Hz 0.88V 3218.75rpm 0 2.30ms
35.00 138.38Hz 0.82V 2500.00rpm 0 2.30ms
34.00 389.98Hz 0.84V 2500.00rpm 0 5.12ms
23.00 496.91Hz 0.82V 2625.00rpm 0 8.19ms
20.00 591.26Hz 0.88V 2750.00rpm 0 9.73ms
17.00 704.48Hz 0.90V 2906.25rpm 0 12.03ms
16.00 855.44Hz 0.90V 3062.50rpm 1 13.82ms
14.00 968.66Hz 0.88V 3281.25rpm 0 14.34ms
15.00 1000.11Hz 0.90V 3468.75rpm 0 14.34ms
16.00 1132.20Hz 0.88V 3593.75rpm 0 14.85ms
17.00 1207.68Hz 0.88V 3968.75rpm 0 15.10ms
17.00 1314.61Hz 0.88V 4031.25rpm 1 15.62ms
17.00 1358.64Hz 0.88V 4437.50rpm 1 15.87ms
18.00 1497.02Hz 0.88V 4500.00rpm 0 16.38ms
18.00 1553.63Hz 0.88V 4812.50rpm 0 16.90ms
17.00 1603.95Hz 0.88V 5093.75rpm 0 17.41ms
17.00 1603.95Hz 0.88V 5250.00rpm 0 17.41ms
19.00 1603.95Hz 0.88V 5468.75rpm 0 17.41ms
20.00 1603.95Hz 0.88V 5625.00rpm 0 17.92ms
20.00 1603.95Hz 0.88V 5781.25rpm 1 18.18ms
21.00 1603.95Hz 0.88V 5937.50rpm 0 17.15ms
21.00 1603.95Hz 0.88V 6000.00rpm 0 17.66ms
21.00 1603.95Hz 0.86V 6187.50rpm 9 17.15ms
18.00 1603.95Hz 0.86V 6375.00rpm 12 14.85ms
17.00 1213.97Hz 0.84V 6312.50rpm 23 11.78ms
18.00 1603.95Hz 0.72V 6812.50rpm 40 14.59ms
15.00 1239.13Hz 0.64V 6843.75rpm 39 1.28ms
34.00 245.31Hz 0.82V 6031.25rpm 0 1.79ms
45.00 144.67Hz 0.82V 4750.00rpm 0 1.28ms
44.00 106.93Hz 0.82V 4031.25rpm 0 0.00ms
41.00 81.77Hz 0.78V 3250.00rpm 0 0.00ms
39.00 56.61Hz 0.51V 2593.75rpm 0 0.00ms
38.00 37.74Hz 0.21V 2031.25rpm 0 0.00ms
38.00 31.45Hz 0.04V 1468.75rpm 0 0.00ms
26.00 31.45Hz 0.00V 1000.00rpm 0 1.54ms
17.00 31.45Hz 0.00V 875.00rpm 0 1.79ms
11.00 31.45Hz 0.00V 781.25rpm 0 1.79ms
9.00? 31.45Hz 0.00V 718.75rpm 0 2.05ms

 

[bwain]

anyone? I would appriciate any help

 

[92awddsm]

You are knocking like crazy and o2 is going lean. Have you tried replacing the fuel filter? If not, do it and rewire the pump at the same time and see if it cures your problem.