Opinions on GM Stage 1 kit for auto SS
Senior Member
Joined: 02-29-2008
Posts: 110
From: Waterville, OH
me too
Kick(ed) ass until this morning.
Driving to work this morning, 32 degrees (F) ambient on cruise control set at 60 mph; all is fine.
Stopped at a stop sign, normal light accelerator input, NO boost.
No codes were set and no error lights nor messages.
Same result the rest of the trip, no boost (I could hear the turbo spinning)
Lunch time, boost was there sometimes and varible.
On the way home, 50 degrees ambient....boost worked all the way home.
Does any of this sound familiar T-Rodius?
I am hoping I have a loose charge tube clamp, will check later.
Senior Member
Joined: 07-05-2008
Posts: 5,464
From: Akron Ohio
Only code that has ever come up on several occasions is P0101. Just have the GM Tune and a drop in K&N. This boost cut-out or lack of boost happened once pre-tune. Since the kit install it happens on a regular basis. Example: I'll be on the interstate doing 75mph, drop it to I(yes I have the Auto, the wife can't drive stick), mash the pedal and hit 18psi climbing past 20psi at this time I'm doing 100mph so i let off. If I try it again a few miles later i can only get maybe 12-15psi basically stock levels. Then I'll exit the freeway and from a stop mash it again and I'm back to tune levels of 20psi. Then at the next stop light I may only hit 8psi, too much variance and fluctuation for me to be happy, more annoyed than anything. And I don't want to take it back to the dealer that said that my K&N filter was causing the problem and would void my warranty on a new replacement MAF sensor. It seems to be hit or miss how much boost I'll get. During the spring install I did notice a lot of oil residue in the bottom elbow of the piping? I just want some damn consistency.......do you think upgrading the piping would fix this problem?
From the way it is acting it does the same on the stock settings. The boost is variable under different speed, RPM, temp, alt, air density and other conditions. It tunes to the optimum levels.
I would suspect the stage kit is no different and that is why it may be doing this. I get my kit on Monday so I will find out if mine will do the same.
Unless you over oiled your filter recently it should not effect your car. Most people who have problems have over oiled. KNN will now defend you at the dealer if it becomes an issue. Read their web site. They will stand behind their product and you now.
Senior Member
Joined: 12-09-2008
Posts: 224
From: Detroit Area
Boost variation
Only code that has ever come up on several occasions is P0101. Just have the GM Tune and a drop in K&N. This boost cut-out or lack of boost happened once pre-tune. Since the kit install it happens on a regular basis. Example: I'll be on the interstate doing 75mph, drop it to I(yes I have the Auto, the wife can't drive stick), mash the pedal and hit 18psi climbing past 20psi at this time I'm doing 100mph so i let off. If I try it again a few miles later i can only get maybe 12-15psi basically stock levels. Then I'll exit the freeway and from a stop mash it again and I'm back to tune levels of 20psi. Then at the next stop light I may only hit 8psi, too much variance and fluctuation for me to be happy, more annoyed than anything. And I don't want to take it back to the dealer that said that my K&N filter was causing the problem and would void my warranty on a new replacement MAF sensor. It seems to be hit or miss how much boost I'll get. During the spring install I did notice a lot of oil residue in the bottom elbow of the piping? I just want some damn consistency.......do you think upgrading the piping would fix this problem?
I do not think any piping changes would fix the problem. Check for boost leaks, all the intercooler connections. Did you install the kit or did you have the dealer install the kit? I watched at a dealer yesterday, the mechanic installed the MAP sensor without changing the O-ring. I told him about it and had him correct it. If the MAP or the TMAP was installed with the incorrect O-ring in might couse inconsistant boost levels to to leaking under some condidtins and not leaking under other contidions.
Senior Member
Joined: 06-25-2008
Posts: 305
From: Austin, TX
Everything's been good on mine so far. Only thing I've noticed is when the car (auto) is loaded down with a good amount of weight, the boost and acceleration is very staggered even when pedal pressure is constant...5 psi, hold for a second then jump to 10, hold then jump to 15, hold then jump to 20. I'm assuming it's normal, just never noticed it pre-stage kit because it wasn't boosting as high.
Member
Joined: 12-20-2008
Posts: 85
From: Flint, MI
re:me too
My kit was installed April 1st (no fooling).
Kick(ed) ass until this morning.
Driving to work this morning, 32 degrees (F) ambient on cruise control set at 60 mph; all is fine.
Stopped at a stop sign, normal light accelerator input, NO boost.
No codes were set and no error lights nor messages.
Same result the rest of the trip, no boost (I could hear the turbo spinning)
Lunch time, boost was there sometimes and varible.
On the way home, 50 degrees ambient....boost worked all the way home.
Does any of this sound familiar T-Rodius?
I am hoping I have a loose charge tube clamp, will check later.
Kick(ed) ass until this morning.
Driving to work this morning, 32 degrees (F) ambient on cruise control set at 60 mph; all is fine.
Stopped at a stop sign, normal light accelerator input, NO boost.
No codes were set and no error lights nor messages.
Same result the rest of the trip, no boost (I could hear the turbo spinning)
Lunch time, boost was there sometimes and varible.
On the way home, 50 degrees ambient....boost worked all the way home.
Does any of this sound familiar T-Rodius?
I am hoping I have a loose charge tube clamp, will check later.
This sounds all too familiar. Whenever it would cut out it always came back after the car was turned off and then started again. Last few days have been good haven't noticed as much fluctuation, maybe it's due to the dejon spring? When I was under the car the other day to check the T-Bolt on the IC piping I looked over at the sensor on the lower pipe that was supposed to be modified during the install(BOSS sensor?) to me it didn't look like they did this at the dealer where I had the install done. Will take some pics and post them this weekend so you guys can tell me what you think. If left un-modified what are the potential problems with that lower sensor?
Member
Joined: 12-20-2008
Posts: 85
From: Flint, MI
I do not think any piping changes would fix the problem. Check for boost leaks, all the intercooler connections. Did you install the kit or did you have the dealer install the kit? I watched at a dealer yesterday, the mechanic installed the MAP sensor without changing the O-ring. I told him about it and had him correct it. If the MAP or the TMAP was installed with the incorrect O-ring in might couse inconsistant boost levels to to leaking under some condidtins and not leaking under other contidions.
Member
Joined: 12-20-2008
Posts: 85
From: Flint, MI
From the way it is acting it does the same on the stock settings. The boost is variable under different speed, RPM, temp, alt, air density and other conditions. It tunes to the optimum levels.
I would suspect the stage kit is no different and that is why it may be doing this. I get my kit on Monday so I will find out if mine will do the same.
Unless you over oiled your filter recently it should not effect your car. Most people who have problems have over oiled. KNN will now defend you at the dealer if it becomes an issue. Read their web site. They will stand behind their product and you now.
I would suspect the stage kit is no different and that is why it may be doing this. I get my kit on Monday so I will find out if mine will do the same.
Unless you over oiled your filter recently it should not effect your car. Most people who have problems have over oiled. KNN will now defend you at the dealer if it becomes an issue. Read their web site. They will stand behind their product and you now.
Senior Member
Joined: 02-29-2008
Posts: 110
From: Waterville, OH
It's still intermitent for me
This sounds all too familiar. Whenever it would cut out it always came back after the car was turned off and then started again. Last few days have been good haven't noticed as much fluctuation, maybe it's due to the dejon spring? When I was under the car the other day to check the T-Bolt on the IC piping I looked over at the sensor on the lower pipe that was supposed to be modified during the install(BOSS sensor?) to me it didn't look like they did this at the dealer where I had the install done. Will take some pics and post them this weekend so you guys can tell me what you think. If left un-modified what are the potential problems with that lower sensor?
The boost is VERY varible. On the way home this afternoon, plenty of boost leaving the stop sign. Next stop sign (just 1/4 mile later), NO boost and I mean none. Zero to one pound at the most. This happened at least twice on the way home today. The first time this happened (no boost), I did turn the car off and then restarted.....did not help me...still didn't build pressure (boost).
I am still hoping for loose clamp(s), plan to check them tomorrow.
As more kits are installed, I expect to hear more about this problem.
(Never had the issue before the kit, but didn't have nearly as much boost pre-kit).
Senior Member
Joined: 07-05-2008
Posts: 5,464
From: Akron Ohio
Never oiled the filter. 0psi and total loss of boost is unacceptable and whether it's stock or tuned something is wrong. I apologize for the tone but that's just a reflection of how I'm dealing with this whole problem. it pisses me off. Just want the damn thing to work all of the time. However the past few days have been good, maybe the Dejon spring has a hand in this.
It was just a thought.