Keep getting a come go ses light for a lean code 064 on my right 02 sensor? Swapped it out for a new sensor and its still goin on. Its starting to drive me nuts. Car seems to be lacking a little power in the lower rms and has a slight miss. Any ideas??

 

could be a few thing, gunked up injectors is what comes to mind first than bad spark. either way if a lean code comes up and its not the o2 than your not getting enough fuel on that side

 

Thats kinda what i thought that or maybe a exhaust leak at the flange but i dont think there is one. Ive never had a issue with the injectors but i guess they gotta go sometime. Plugs cant have but about 5000 on them. Ill swap injectors out for a spare set and get new plugs i guess..

 

id wait on the plugs until you get the lean fixed no sense in ruining new plugs

heres a vid i found on cleaning injectors a while back, ive never tried it but id think it would work really good

http://www.youtube.com/watch?v=VFJlTfHyrUk

 

Would there be anything to gain from performance injectors? If so what should i get? Current mods are lt4 hot cam kit. Headers, cai, air pump evap and egr delete.

 

no not really just about the only time you need upgraded injectors is when your making some serious power (i have no idea the limit on the stock injectors but im guessing its probably around 350-400hp)

 

Changed out the injectors with a spare set that i never had a problem with. Code keeps coming back....what now?

 

send the stock injectors in to a injector shop to be cleaned and flow tested. test fuel pressure, number 33 on the list here 4th Gen LT1 F-Body Tech Aids check fuel filter, take it lose from the tank side and dump contents into a clear container, if any gunk replace. could very well be a exhaust leak but you should be able to hear it, should have a ticking noise. test the egr to see if its sticking or leaking. your air system may also be leaking exhaust back though a bad check valve.

 

Gonna have to look into getting the injectors cleaned and tested i dont know of any place around here that does it. Ill test the pressure and change the filter. There isnt a exhaust leak from what i can tell. Egr,evap and air pump have all been deleted. Seems weird though i never had a problem with this engine or the injectors in my last car that was totaled. Stuffed it in this car and now its acting up. The other thing the car is doing is it will miss or buck under a load under 2000rpm so basically if im driving around i have to down shift and get it revving over 2k or its shimmyin like its only runnign on 7 cylinders. its weird kinda hard to explain. Ill check tomorrow Maybe the pump is weak or clogged filter. Ill Let u know the results...

 

Have yoy tested with a NOID light to verify that the injector is actually being fired ?