Missing @ 3-4krpm every gear - and a noise

[gaz1234]

I went out in the car the other day and it starting kangarooing. It used to do it before its insp2, but was sorted afterwards. I managed to get it warmed up when it was missng/kangarooing (around 3-4krpm) and then floored it which fixed the problem.
I turned the ignotion on today (after a week of sitting in the garage) and i could hear a noise coming from the right rear (in front of the wheel). Turned it off and back on and a similar noise again..
Could this be a fuel pump issue that is around here or primer system?