ok here is the deal i have a 2007 chevy cobalt ss/sc right now i am running a Gm stage 2 tune, i want to go with a 2.7 pulley and 60lb injectors (plus other mods, ill be glad to list if anyone wants to know them) i have actually gone threw 4 bad tune, yes 4! My idel is jumpy, yes i have cleaned my throttle body, my car gets slower, and check engine light is on and off. i have done 2 laptop tunes, 1 performace shop tune, and my most recent ZZP custom pcm, but all make the car run like ****. So can anyone tell me where i could go or what i can do to make my car run healthy with 2.7 pulley and 60lb injectors!!!!
Thanks Ricky
P.S.-i am new to this form stuff .... lol

 

you need to find somebody in your area that is experienced with HPTuners, and have them tune you.

 

yea im working on finding shops, but my only worry is i have done that once, spent 1500$ they said they knew what they were doing but the car begain to have random cylinder misfire and would have to crank over and over again to start, but thanks!!

 

email trifeca, nothing but good stuff from there tunes.

 

would you mind giving me "trifeca" email? and where are they located, im in Maryland

 

You can also get a tune from OTTP. Heard nothing but good things about them

 

You spent 1500 on a custom tune???

I'm sure there are tuners located in Maryland. I think there is a sticky showing the tuners and their locations. If you can't find anyone Trifecta is an option the work through emails to tune you over a day or so.

 

if it runs like **** with the stage 2 stuff on it, take it to the dealership.

if not, find an experienced GM tuner.

 

im from bel air, md where u from?? ive got hptuners that im messin around with/learning to tune... i might be some help to you... im running 2.8 with 60's and the tune is great, do you have afr gauge??

 

I have 60's on 2.7 tune if you are running meth I could sell you.