intermittent rpm oscillation off idle 1500 rpm 3% tps

[Nyegee]

This issue has been on going before during ,and after a professional tune. Basically on light throttle at 3% tps to be specific the car will buck when driving, if at a standstill pressing gas pedal tps at 3% the rpm will oscillate up and down. The tuner said might be electrical might be the cams im running (skunk2 stg 3 tuner), at this point ive replaced tps several times with no solution the problem seems to arise after 180f ect.Ive attached a copy of the datalog it captured the problem at about 14:24-14:33

[Spunkster]

Where in the datalog are you seeing this happening?

[Nyegee]

sorry for the late response the car sits most the time........well some more background on the set up its on 1000 cc fic injectors e80 12.5:1 compression skunk2 stage 3 tuner cams i managed to capture the issue in a recent log i have attached........... this same issue happens after a while of driving once engine coolant temps cross 180 f and if it sits engine off for a while then i drive it again it'll be fine up until it gets a lil heat soaked again thnks for any suggestions

[Spunkster]

Have you used the correct dead times for the injectors you are using?

It appears to be running very rich.

[Nyegee]

im running the recommended dead times and set it to open loop during that last log......could it be the aftermarket iacv im running?

[MondeCruel]

It could be iacv because your manifold pressure moves up and down with your tps steady i think only iacv can make your map moving like that

[MondeCruel]

But as said above your afr is too rich and maybe it is the real cause of problem