GM employees
 

Or anyone who is able to, anyway you could pm or post any and every recall or tsb for the ss/tc? My car is definitely having issues now, and I'm pretty sure it's not tune related. It's just not holding boost, and last night it went up to 22, and just fell down to 10. And driving it today and last night, it just wasn't making the power it normally does. After this weekend I'm probably going to take it in to get looked at, and it would be helpful if I at least knew some common problems, searching has brought me nothing. Help a girl out! Thanks. :)

boost leak?

boost leak?

thats good that you want to learn about your car but if its warranty does it really matter as long as its fixed?

Not a GM employee but your problem sounds like it MIGHT be one of the following:

1. Charge piping has come loose from the throttle body. Follow the piping up from the passenger side of the intercooler and try to pull up as hard as you can up to see if it's sealed tight around the TB. It's a pain in the ass to get to but you can't miss where it hooks up.
2. On the passenger and driver side check your charge piping to make sure it's NOT rubbing on the huge bolts popping up from the lower frame. If you look down on the driver's side you can't miss it...passenger side more difficult. Mine only has about 1.5 inches of clearance on the driver's so if your charge piping has sagged it might have punctured through.

Beyond that if you're losing that much boost with no CEL the only other thing I could think of is the charge piping seal around the turbo itself.

Yes I would like to know what's wrong with my car lol. Doesn't seem like your typical boost leak, everything is super tight. It also is an intermittent problem, it doesn't happen ALL of the time, but it seems to be getting more frequent.

#09-06-93-004: Intermittent MIL/Check Engine Light On, DTC P0299 or P0234 Set (Adjust Turbocharger Wastegate Actuator) - (Jul 21, 2009)
#PIP4669: Intermittent DTC P2261 Setting - keywords air boost cac charge chevrolet control cooler driveability ecm engine gas hole intermittent inf low maf map mil pipe power reduced reducedpwrmde ses turbo - (Jul 7, 2009)
#PIP4559: DTC P2227 After Turbo Upgrade Kit Installation - keywords accessory air boost cal calibration cel charge control cooler driveability DTC ECM engine gas leak inf low MAF MAP MIL PCM performance power - (Jan 13, 2009)
#PIP4520: Low Boost / Power And/Or DTC P0299 Or P0101 - keywords actuator boost CAC charge control cooler driveability DTC ECM engine gas lnf low maf MIL reduced reducedpwmde SES wastegate - (Nov 4, 2008)
#PIP4485: Low Boost, Reduced Power and/or DTC - keywords air cac charge control cooler driveability ecm engine gas hole lnf low maf mil P0101 P0299 P2178 pipe power reduced reducdpwrmde rub ses start stall - (Sep 26, 2008)
#07-00-89-058C: Astra - New Model Features and Service Guide - (Sep 11, 2008)
#PIC3385E: Repeated Park LPS Fuse Open (Additional Information) - keywords B2585 B2585-06 B2625 B2625-02 BCM brake DTC dimming hazard IPC MIL repeat STG SYS - (Aug 14, 2008)

No recalls I know of that could cause that, three issues Ive seen and at least one of them has a information notice about is: charge piping rubbing on the radiator support bolts(Steddys car did this, and was even worse with Hahn piping), nipple breaking off charge piping near TMAP, and only other boost realted thing ive seen is a broken wastgate valve. The nipple breaks off the valve and has to be replaced.

I would prepare to lose your tune if I were you though....updating the ECM calibration is common practice at some dealers for drivability issues, and its recommended for several codes.

Ill look it up on alldata right now

Ok i just looked on alldata and their is a page of probably 30 tsb's

Here ya go buddy enjoy

01-07-30-036H 01/29/2009 A/T Control - DTC P0756 Diagnostic Tips
00-00-90-002J 01/28/2009 Tires - Correct Inflation Pressure Information
07-08-98-001A 01/28/2009 Body - Non-Approval of Clipping For Collision Repair
05-03-10-020B 01/22/2009 Tire - Use Of Nitrogen Gas In Tires
09-08-67-001 01/06/2009 Body - Rattling Noise From The Sunroof Area
01-06-01-011E 12/18/2008 Gasoline Engine - Oil Consumption Guidelines
08-06-04-033C 12/18/2008 Engine Controls - Aftermarket Calibration Identification
08-08-42-005A 12/17/2008 Lighting - Headlamp Replacement Guidelines
06-08-50-009C 12/12/2008 Restraints - Passenger Presence Sensing System Info.
08-08-44-032 12/10/2008 Audio System - iPod(R)/iPhone(R) Won't Connect To Radio
06-09-41-004H 12/03/2008 Interior - Passenger Air Bag Is Not Flush With Dash
00-03-10-006D 11/26/2008 Tires - Radial Force Variation (RFV) Info.
07-03-10-008A 11/26/2008 Tires - Slight/Mild Edge Feathering Information
03-03-10-007D 11/24/2008 Wheels/Tires - OE Tire/Wheel Characteristics
07-03-10-013D 11/24/2008 Wheels/Tires - Vibration While Driving
08259A 11/06/2008 Campaign - Inoperative OnStar(R) System
07-07-30-010A 10/30/2008 A/T Controls - Snapshot Data Upload Information
08-06-03-009A 10/29/2008 Electrical - Reducing Intermittent Electrical Concerns
06-08-50-005C 10/01/2008 Interior - Seat Cushion Cover Is Loose
00-00-89-027E 09/29/2008 Interior - Elimination Of Unwanted Odors
08-08-44-010D 09/29/2008 Navigation Radio - Diagnostic Information
01-07-30-032E 09/29/2008 A/T - 4T65E Fluid Leaking From A/T Vent
08-08-46-006 09/25/2008 Audio System - XM(R) Terrestrial Repeater Changes
06-08-44-012C 09/18/2008 Navigation System - DVD Navigation Updates Program
06-06-93-001E 09/15/2008 Engine - Ticking Noise On Cold Start Up (Normal)
06-08-111-004A 09/15/2008 Body - Exterior Emblem Discoloration/Blistering/Peeling
05-03-10-005D 09/11/2008 Wheels/Tires - Upsized Wheel/Tire Characteristics
02-08-42-001C 09/05/2008 Lighting - Headlamp Polycarbonate Lens Damage Prevention
07-03-10-016C 08/29/2008 Wheels/Tires - Required Label When Changing Wheels/Tires
08-08-44-028 08/28/2008 Audio - Inadvertent Steering Wheel Button Activation
03-08-48-006E 08/25/2008 A/C - Rear Window Defroster Grid Contact/Tab Repair
08-07-30-039 08/21/2008 A/T Controls - Service Fast Learn Adapts Characteristics
08-08-126-001 08/15/2008 Navigation Radio - XM NAV(R) Traffic Coverage Areas
08-09-41-002A 08/14/2008 Restraints - Air Bag Lamp ON/Various DTC's Set
08-08-46-004 08/14/2008 OnStar(R) - Aftermarket Device Interference Information
08-08-44-026 08/11/2008 Audio System - Refurbishing Radio Faceplates/Knobs
08-07-30-035 08/08/2008 A/T - Water Or Coolant Contamination Information
05-06-04-022E 08/06/2008 Fuel System - TOP TIER Detergent Gasoline (Canada)
06-03-09-005B 07/30/2008 Suspension - Rear End Squeak/Squawk on Low Speed Bumps
02-06-03-008D 07/21/2008 Charging System - Low Voltage Display/Battery Discharged
04-06-04-047H 06/24/2008 Fuel System - 'TOP TIER' Detergent Gasoline Information
08-08-64-011 06/23/2008 Mirrors - Heated Mirror Defrosting Time
08-08-44-023 06/18/2008 Navigation Radio - Adaptation After Radio/Battery R&R
07-03-16-004A 06/18/2008 Tire Monitor System - FAQ/Diagnostic Information
05-00-89-072B 06/17/2008 Engine/Fuel System - Oil/Fuel Additive Information
99-04-20-002E 06/06/2008 Drivetrain - Driveline Clunk Information
08-07-30-026 05/22/2008 A/T - Slight Vehicle Movement In Park At Start Up
07-08-49-020B 05/22/2008 Instruments - IPC Odometer Programming Reference Guide
08-03-10-007 05/16/2008 Tires - Minimizing Damage to TPM Sensors
01-07-30-010C 05/12/2008 A/T - Torque Converter Replacement Information
08-03-16-003 05/12/2008 Tire Monitor System - TPM Sensor Information
00-05-22-002K 05/06/2008 Disc Brakes - Warranty Service and Procedures
01-08-42-001F 05/02/2008 Lighting - Exterior Lamp Condensation Guidelines
03-07-29-004E 05/02/2008 M/T - Operating Characteristics of Manual Transmissions
08-03-10-005 05/01/2008 Wheels/Tires - Chrome or Chrome Plated Steel Valve Caps
08-03-10-006 05/01/2008 Wheels/Tires - Tire Slowly Loses Air/Low Tire Message
02-06-03-009C 04/17/2008 Electrical - Battery Charging Tips/Recommendations
05-06-03-002C 04/17/2008 Battery/Charging System - Electrical Diagnostics Info.
00-06-01-012C 04/14/2008 Engine - Use of 'Surface Conditioning Disks'
08-06-01-008 03/27/2008 Engine - Accessory Drive Belt Noise Diagnostics/Tool
08-03-10-004 03/25/2008 Wheels/Tires - Accessory Wheel/Tire Mounting/Balancing
08-08-51-002 03/12/2008 Body - TPO Fascia Cleaning Prior to Painting
04-08-50-006B 01/25/2008 Interior - Seat Cover Wrinkle/Crease/Crack/Burn Info.
06-00-89-029D 01/10/2008 Interior - Cleaning of The Interior Surfaces

Hmmm I have a stock ecu and tuned ecu? Which should I have in when they're check it out?

Wow i wasnt expecting it to post so many this damn site pisses me off sometimes, anyways thats all the tsb's listed. It does tell you the fix for everything but it wont let me copy it.

Heellp!! :( Also it doesn't throw any codes, and I've had it scanned twice.

It did on all stock, psykosteve, and terminator tunes?

Didn't have the Terminator tune on long enough to know, stock it did a few times, I'm going to put that ECU in tomorrow and see how it is. I really don't think it's the tune though.

Would a clogged cat increase or decrease boost?

increase

idk from what I was reading it'll decrease it

Reading where. POST!! lol

Lol from where? Post!!! ...this site is being gay again

hey didn't you just have an oil change?

Yours sounds simliar

http://forums.fourtitude.com/zerothr...ostid=55726843

I did just have an oil change, and my vin fits into the range of cars affected by the Recall. I should have that checked out.

wat do u normally spike boost at? and wat does it usually hold?
stock dp?

Stock dp, it doesn't spike, it goes up to 22 and holds.

o then its a boost leak for sure. didnt u change ur intake lately? u check all ur t-bolt clamps? all of them dont b lazy

No the new intake is not on yet, I haven't checked quite everything yet to make sure it's tight. There's a recall that my car fits into, and a couple TSB's that could have the cause.