Hey every one i have recently bought a 2006 SC SS cobalt and its says it a stage 2 on gms papers and it looks like some things are unplugged and i would love to know why first the Evap line is unplugged the one that goes to the throttle body and when i found the line it had a bolt in it ...... so i naturaly took out the bolt and plugged it back in um big mistake i ran it around the corner and off to a friends house i noticed a loss of power so i tested that fact i ran it hard and maxed out the boost at 13.5 and before i did that it would boost at 14.9 i was like eh loss off power is better if it runs better witch it seemed to do until the trip home......... the car started acting iradicaly when i went into first its was broncoing and i couldn't stop it i shifted higher and up'd the throttle got the revs high and it stop at around 4k RPMS.. i put it in neutral and i swear the engine sounded like it was choking the revs were bouncing hard core from around 200-2000 it was going nuts i swear if i left it like that it would shut off so when i got home i toke the line off and put a screw back in it but i hate running things rigged can some one help there is also another line that is missing but i don't even know what it is all i can tell u is that its a barb on the far left side of the engine. There's also another line in my air intake that has a bolt in it also please help guys ...and sorry for the bad English and grammar

 

if you just bought it from a dealership, you got screwed cause i think florida's law is on an as-is car once you drive it off the lot, it's yours no matter what. if you bought it from a private party, the same applies.

now that you know you screwed up, go ahead and take it to a mechanic and have them do a full check.

 

Lol. Shouldn't have taken the screw out. Some times it is important to block off a Vac line if the tune on the car is not tuned for it. Saw this same ghetto setup on a friends supra with a big turbo... put the car back the way you found it.

 

I toke the car today to Autozone to take a look at the Engine light on it has 2 O2 Sensors and a Supercharger Sensor bad or notpluged in are these things to worry about ive only worked on Carbed engines i was a real V8 kinda guy but i wanted to get into the Tuner Gig before i was to old and i know on Carb engines i can look at an O2 Sensor and kick it cause its usless!

 

you need every little sensor on this car or else you will throw a code. i would say plug everything back in and drive it to a gm dealer and get them to reflash you stage 2 tune. or find someone with hp tuners and let them fix everything

 

dose it cost money for a reflash?

 

yes it cost money. Does ur pulley have bolts in it? If so what color are they? What size it ?


Please list all of ur mods.

 

where in fl are you?

 

oh snap i think i know this car.

 

he is gonna bring it to towers for us to look at and Bob is gonna check out the tune.

 

Sounds like it's misfiring. Happened to me on my LSJ when I got water moisture on the MAF