So I made a new thread to see if anyone else have any thoughts very light acceleration it drives good but normal acceleration it will start to jerk around 40ish mph and up. No cels if I get a new mad then a cel pops up it's like no performance or range I can't do a smoke test bc cheapest place is $77 and money's tight bc I was hit by a drunk driver a few weeks ago. I talked to some people they said vacuum leak but others said boost control valve. I tested the fuel system bank 1 on my OBD2 and it said failed. While going down the road if I look at the live data on the OBD2 my air lb/min will keep going up till like 7-8 lb/min then it will jerk and the OBD2 will say .05 or 1lb a min while it's jerking
if you have any thoughts please help and know any cheaper way to check this stuff as well

 

My car drove absolutely terrible when my TCV went bad, the jerking and lagging can be from the car having uncontrolled boost. $30 part to replace, but a waste if you don't need it. A boost gauge in my car was my best choice, it really helps with diagnosing a pressure issue while driving without a scan tool to stare at. Intake leak is also very possible.