Uneven and Jerky running at certain rpm

[VikingCerb]

Hi,

I have a 2004 4.5 Red Rose with short induction mapped by Joolz. The car feels very jerky around 2.200-2.300 rpm using constant throttle. Above and below this range the car is very smooth. TPs are equal , as are adaptives which fluctuate +/- 3 from 0.

My problem is that with the speed limits here in Norway most of my driving is in the "problematic" rev range.

To see if there is a problem, I used the logging function in the RS.AJP app and have taken out some data both at idle, in the problem range and at higher revs/speed. Before i did the logging i reset all fault codes, TPs and adaptive. This is what I get:

TIMEMS RPM TP1 TP2 ADAPTIVE_1 ADAPTIVE_2 LAMBDA_1 LAMBDA_2
1,43267E+12 2330.0 21.2 18.7 7.5 10.6 0.06 0.04
1,43267E+12 2309.0 22.6 20.1 9.8 18.4 0.05 0.04
1,43267E+12 2288.0 24.0 20.5 9.8 20.0 0.05 0.04
1,43267E+12 2279.0 23.3 21.9 10.6 19.2 0.05 0.04
1,43267E+12 2287.0 29.7 22.6 9.8 20.0 0.05 0.04
1,43267E+12 2296.0 28.3 26.2 12.2 15.3 0.06 0.04
1,43267E+12 2289.0 29.7 26.9 8.2 14.5 0.05 0.04
1,43267E+12 2246.0 28.3 27.2 11.4 11.4 0.73 0.04
1,43267E+12 2309.0 24.0 22.6 14.5 19.2 1.28 1.26
1,43267E+12 2313.0 26.9 22.6 16.2 20.8 1.29 1.26
1,43267E+12 2325.0 26.2 22.6 13.7 20.0 1.29 1.24
1,43267E+12 2306.0 23.3 22.6 16.8 22.4 1.29 0.15
1,43267E+12 2251.0 26.9 23.3 12.2 23.9 1.27 0.1

1,43267E+12 868.0 14.8 14.8 1.2 1.2 0.01 0.03

1,43267E+12 3125.0 38.2 38.6 -0.4 -0.4 0.09 0.29

I have tried reading up on posts as well as the manual for the original software to connect to the ECU. However I cannot figure out what to read from the above data. It only being in a certain isolated and small rev-range keeps me puzzled.

Do any of you have any input or experienced the same. And have any input as to what to look for?

Thanks in advance.

[VikingCerb]

thanks for the assistance in formatting djstevec

[VikingCerb]

thanks for the pointers. My car also has very noticeable pinking below 2k.