Ok so my cars been throwing this code off and on for a while now that it was jus the gas i put in it but its not. Right now my car has the stage 2 tune but the stock pulley and injectors, is it possible that its because i have the stage 2 pcm but not the other parts to this that its not running perfectly and also i cannot feel or hear the misfires so im clueless. Can anyone help!!!!

 

yup

 

so if i put this 2.9 pulley on with 60lb injectors it should go away right

 

If u have a tune for stage two leave.the 42 s in and stage twoo pulley also u cant just throw a pulley or injectors on with out the tune. Id regap ure plugs and see if it goes away. . If gap were at. 034 gap to. 032 if at. 032 gap to. 030

 

Occasionaly I get a nuscance fault P0300 triggered by my interceptors

 

you're running the stage 2 tune with stock injectors? There's your problem right there. Put some 42# on there and it should clear it up.

 

im not gonna just throw them in im gonna get it tuned to but i wanna know is can i do that and tune ut or should i get the stage 2 injectors and pulley

 

As far as I understand
Stock = 3.3" with 35# Injectors
Stage 1 = 3.3" with 42# Injectors + Tune
Stage 2 = 3.0" with 42# Injectors + Tune
Stage 3 = 3.0" with 42# Injectors + Tune

At least the GM stages. They may have changed them some though.
I thought I heard somewhere that GM Stage 3 might be a 2.9 Pulley now.

 

yea i have a 2.9 i bought off someone and im about to order injectors and ik that i would need to get 60# for it cause the 42#'s wont last but would that get rid of my problem

 

I'v been running 42s on a 2.85" pulley ever since I baught my car (Used, came that way)
and havnt had any issues. But I don't race it either, and don't really get on it much.

 

Yea id do that but i do occasionally punch it and race so i dont think thatll be a choice for me