OneFast20

everytime my car sits over night and I go out to start it something is just not right. I turn it on and it idles fine, backs up fine, it goes in first fine, I turn the corner and shift into 2nd and it starts kinda bogging and bucking and it just doesn't feel right...I go around the bend and shift into 3rd and it just laid flat. It started bucking, and I hit the gas and the boost went all the way to 15 but the car was going no where, it felt exactly like limp mode. so i push the clutch in and I felt the motor was shaking bad, and i heard a bad noise so I stopped and shut the car off and popped the hood because i thought the belt broke or something. I look and nothing is wrong, so I turn it back on and I drive it and it doesn't do it again, it runs fine. I'm wondering who else has this happen? It has happened since the day I had the car, Stage 2 it did the same thing, and with the 2.8 pulley its not getting any better. Even a step colder plugs won't do the trick. What is going on and what can I do to fix it? It happens every single day I start it up in the morning to drive to work...

Matty

I bet it is leaning out.

My WEGO bounces into the 19's at times when it is cold.
Snarkee says GM is aware and looking into it. (if this is the same problem)

OneFast20

so if it is leaning out do I have a real chance of hurting the car? Should i start it and let it warm up? because after it is warmed up it runs just fine...

Matty

I let it idle for about a minute or so. Don't throw your foot into it when the bucking starts. It won't help.

Does it kind of hesitate or buck going up hills when you are about 1/2- 3/4 throttle?

OneFast20

when the car is warm it doesn't buck or hesitate going up hills, it usually does fine at 1/2-3/4 throttle going up hills. Every now and then it feels like its hesitating driving on a flat service at 1/2-3/4 but I thought all that was from was the 2.8 pulley and the car needing to be tuned?

Matty

It most likely is the tune. I am hoping GM finds a cure for the stage 2 glitch.

An HPTune can smooth all of it out. if you have access to someone with the knowhow and a HPT, go for it.

OneFast20

i am having trouble finding someone to help me with a tune, and intense is a 3 hour drive plus $375 to tune it for an hour. Do you think it will be fine racing it at the strip without the tune? When it is WOT it pulls hard and the boost guage goes past 15.

Matty

With my mods I get into the high 10's on the WEGO at WOT. At approx mid way through the RPM range the WEGO reads low 12's.

I wouldn't worry about it.