A few odd issues...
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From: New Minas, Nova Scotia, Canada
When I first got my kit put in, my car wouldn't boost more than 125kpa, now my car boosts 140-145kpa and sometimes, it seems to pull hard and other times it doesn't. It's confuesing.
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Joined: 06-22-09
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From: Kathmandu
does anyone have anymore information on this, i am having a weird problem, second gear is fine, and if i NLS into third my car runs fine, but if i start in third it boosts like 25 (my tune is set to 21) and feels like there is no "real put you in your seat type of pull", til the boost drops down to 21 again..... i'm pretty sure it is just the clutch (getting spec stage 3+ shortly) but i was wondering if this sounded similar to a problem anyone else is having cause i don't think (even tho it feels like it is) it's the clutch for one reason.... why would i boost too high when (if) the clutch is spinning?
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Joined: 11-27-08
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From: Houston TX
yea its the mechanical boost guage, no rpd on mine. Also this is crazy. I cant get the dealership to look at the car cause there is no CEL. This problem is soooooo bad it should be throwing codes all over the place! The fluttering has gotten ridiculous to the point when Im in gear cruising it feels like someone trying to start out in 1st gear who doesnt know how to drive manual. The car bucks ridiculous, the boost is all weird when it does make the full 20 pounds. ARRRGGGHHH! I cant believe the guys who developed the STG1 kits havent had any issues yet.
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From: Woodbine, Maryland
I think this was part of my problem some of the time. It doesn't smooth out untill 4-4.5k rpm. I still want to get everything checked though for the other problems.
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Joined: 06-22-09
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From: Kathmandu
yea its the mechanical boost guage, no rpd on mine. Also this is crazy. I cant get the dealership to look at the car cause there is no CEL. This problem is soooooo bad it should be throwing codes all over the place! The fluttering has gotten ridiculous to the point when Im in gear cruising it feels like someone trying to start out in 1st gear who doesnt know how to drive manual. The car bucks ridiculous, the boost is all weird when it does make the full 20 pounds. ARRRGGGHHH! I cant believe the guys who developed the STG1 kits havent had any issues yet.
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Joined: 07-25-08
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From: Florida
yea its the mechanical boost guage, no rpd on mine. Also this is crazy. I cant get the dealership to look at the car cause there is no CEL. This problem is soooooo bad it should be throwing codes all over the place! The fluttering has gotten ridiculous to the point when Im in gear cruising it feels like someone trying to start out in 1st gear who doesnt know how to drive manual. The car bucks ridiculous, the boost is all weird when it does make the full 20 pounds. ARRRGGGHHH! I cant believe the guys who developed the STG1 kits havent had any issues yet.
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From: Houston TX
The weird thing is right after I got the stage 1 kit installed, it ran fine for about 7K miles, like no issues whatsoever.
Last edited by davidcroft; Apr 26, 2010 at 09:35 PM. Reason: Automerged Doublepost
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Joined: 10-06-09
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From: Newark, DE
got another one with the same issue. 5 psi at WOT...car felt real sluggish pulling away from a stoplight this sunday, so i gave it some more gas and all i got was 5 psi. great job GM. Going to the dealer on Saturday to make them check it out. Checked my charge piping connections from turbo to intercooler and everything. Checked the TMAP sensors. all fine. now its running perfectly too. i hate this.
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From: Newark, DE
all i can say is my dealer better not give me any ****. all I'm going to do is complain, but do a lot of it...after all, I bought the stage kit so I could keep my warranty. so they better fix this.
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From: Florida
ok good cause I have the stocker. I mean not good your intercooler had the holes, and not good you haven't found the problem, but it is still the same problem I am having so whenever one of us figures it out......hopefully it will all be the same issue.
The weird thing is right after I got the stage 1 kit installed, it ran fine for about 7K miles, like no issues whatsoever.
The weird thing is right after I got the stage 1 kit installed, it ran fine for about 7K miles, like no issues whatsoever.
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From: Grosse Pointe Woods, MI
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From: Houston TX
How can I get the dealer that installed mine to agree to even look at this with no CEL on? The whole reason I had the dealer install mine was so I would be compliant with the 5yr/100K powertrain warranty without question whatsoever and its backfiring.
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From: Newark, DE
gotta be the downpipe. mine backfires like a mother.
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From: Woodbine, Maryland
I agree but I can't find anything and I looked at the connections and splices really good and they're all heat shrunk, soldered and all that crap. They look pretty solid to me. I might give it another go 'round and see if I didn't miss something. And/or just have them look at it whenever I can find time to take it in.
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From: Houston TX