84 bmw 318 m10 help miss firing :? :(

[e30zues]

ok well i been having lil problem for a while now i have switched out the cap n rotor,spark plugs n wires, fuel pressure regulator,cleaned out my injectors cuz it was bogging:( a lil,cleaned my intake manifold. n its still miss firing
idk if it might be my ignition coil or a piece were my vacuum hose goes to because when i disconnect it the idle evens out or the speed positional sensor

need help trying to point out my problem if anyone can help will appreciate it

[Rockwool2117]

my 84 m10 needed a new AFM, it had a new (refurbished) which made the gate bend.

[BronzitM10]

Okay literally check every single little vacuum line. if you have a book read around. i did a new AFM, timing chain/tensioners, head gasket, timing gasket, upper and lower oil pan, new cap n rotor, wire, plugs, checked valve clearance, fuel pump, fpr, fuel filter, even a new computer still misfired.. its probably a vacuum leak. the way the fuel management is and how old its really dumb if it has small vacuum leaks and it will throw everything else off

[E30_Pare]

Icv delete. If u want to retain it remove it & plug the holes to test if it solves your problem. Check & clean your intake grounds.