Backfiring, Missing, Car Is Shaking After Greddy Plenum.

[Shmee33]

Hey guys,

After installing my forward facing plenum on my r33 gtst the car is missing, backfiring and shaking struggling to stay alive.

Iv checked for vacuum leaks, bov seems to be working and fuel isn't old.

Could it be

My AAC valve air feed line from intercooler piping has a slight kink in it?

Afm,plugs,coil packs haven't been touched.

Injectors were taken out and flipped but I tried to handle them with care.

Has anyone had this happen to them?

[GTSBoy]

Any of the injectors might not be firing if you have caused a connection issue on the loom plugs (or something similar).

A slight kink in the pipe to the AAC won't cause a problem, unless it has cracked or otherwise gotten damaged. As long as there is a bigger open area in the kinked part of the hose than the opening of the valve in the AAC it won't restrict flow noticeably.

[Shmee33]

I only adjusted the AAC valve plugs on the loom

[Shmee33]

Takes a good 5 sec to get the car started

[Shmee33]

Could pressure on the injector while it was out cause this?

A bending of one of the prongs that are on the tip of the injectors while they were on the bench do this?

[StevenCJR31]

^^ most likely damaged the injector

[Shmee33]

It runs really rich and black smoke when give it a little rev.