M20 surging and stalling under load

[Theburgande30]

Hey guys never introduced myself and my 1988 325i cab. Currently limping around and idk why it surges and bucks under load and now stalls sometomes when coming from a stop. i have so far cleaned the injectors and rail new fuel filter and relatively new fuel pump new plugs and timing redone i think theres rust in the tank but that shouldnt hurt too much right could i just flush it? Also how can i check fuel pressure? Its an m20b25. Also i cut off the cat because i thought it was clogged lol so thats not it

[dnguyen1963]

Please use the search function here. There are countless suggestions for this problem. First thing that comes to mind is intake leak. Have a shop perform a smoke test on your car.

[Theburgande30]

I have searched all over and no one seems to have what i have going on or if they have its not solved i have checked vaccuum and intake leaks and nothing so far

[jlevie]

The only reliable test for intake leaks is a smoke test with a pro machine. Intake leaks may be part of the problem, but I suspect there is more going on. But start withe a properly executed smoke test.