Running rough after new injectors? ERRRR

[txbeemertx]

Ok well, bought the car, ran fine, passed emmisions, was hesitating so changed cap and rotor, which helped a lot! But I'd ordered injectors already, so they are m50 #17 in my m20.
Now won't pull out of the driveway with out feeling like your on a angry bull!
Has a lope almost at idle, and on acceleration theres a high pitch whistle, wtf!!
so i rechecked evrything hoses, connections, the intake boot is new plugs are new, but something telling me i fouled a couple plugs idk.
anybody have any suggestion or run into this?

89 325is

[Cronopoulos]

Did you hook you FPR back up correctly/verify no vacuum leaks?

[txbeemertx]

hmmm let me check

[txbeemertx]

oh yeah thats hooked up

[DooDanE30]

You may have vaccum leaks you don't know about. Putting bigger injectors in your car that was already running rough wasn't going to help. Unplug your spark plug cables one by one while your car is running and figure out which ones may not be firing.

[Quinthirty]

Noticed that you're running it on stock chips as well? Is that the case? I want to know what happens here because I'm about to embark on the same thing. I'm just waiting for my chip to arrive.

[sayed ali]

running m50 injectors doesn't need a chip ..

What plugs are you using?

[toointoxicated60]

all the injectors are seated properly?

[txbeemertx]

PO just installed the bosch platinum4
yeah i was having trouble with injectors seating, one was leaking at the rail till i changed the seal, it was pinched.
i did pull the wires one by one, and there was a couple that didnt seem to make much change, so i'll change the plugs now and let you know.
I'm kinda thinking, i have a bad plug or 2 from the injector change, we'll see

[txbeemertx]

Well changed plugs not the best but it was all they had plus i'm kinda testing anyways, well it does run strong through all the gears but idle just a little lopey, maybe it'll clear out? i think i'll go for the chip.
i'm still searching for vac leak but haven't came across anything.

[phenryiv1]

Did you try pulling the plug wires one at a time? Chances are, 5 of them will make the car run worse and one will have no change. That is where you focus your energy.

Once you determine that:

Swap spark plugs. If the problem moves, you had a bad plug.

If the problem did not move, pull the wires out of the loom and completely swap wires. If the problem moves, it was the wire.

If the problem does not move, pull the injector for the suspect cylinder. Check to see if it is firing while connected to the wire but not in the fuel rail. If it does not fire, you have a bad injector. This can happen even with newly rebuilt injectors.