Lbz #2 misfire after injector swap

[Porno Joe]

Alright just put new injectors in my 2007 Lbz. I bought new injectors and swapped my 40 over tips onto them

Start truck up rail pressure is really high. Like 8000 at idle. And truck has a distinct lope and smokes a bit.
I climbed under the truck and cranked down on the AD dropped my pressure and that seems to have fixed that. Rail at like 6000 cold

I pull codes- po302.

So couple things running thru my brain-

1-could I have dropped the tiny ass hockey puck thing at the nozzle base? I was really careful but just wondering if this would be a sign of that

2- the "ice pick"? I thought this was only LLYs but seems like some Lbzs have harness issues too?

3- can I pull the injector plug off and test the voltage?

 

[mike diesel]

Double check and make sure #2 injector is seated all the way correctly. Was there any debris in the injector hole? I actually just did my injectors today also. Swapped 30% nozzles onto my stock bodies and mine runs great. Fired right up after about 5 seconds of cranking.

 

[Porno Joe]

Ya it's sealed. Not sealed they make a poppin sound and leak a lot of fuel (had that before)