#08-06-04-033: Identifying Aftermarket Engine Calibrations 2.0L, 2.2L, 2.4L, 2.8L, 2.9L, 3.0L, 3.1L, 3.2L, 3.4L, 3.5L, 3.6L, 3.8L, 3.9L, 4.2L, 4.3L, 4.4L, 4.6L, 4.8L, 5.0L, 5.3L, 5.7L, 6.0L 6.2L 7.0L, 7.4L, 8.1L Gas - (May 30, 2008)


Subject: Identifying Aftermarket Engine Calibrations 2.0L, 2.2L, 2.4L, 2.8L, 2.9L, 3.0L, 3.1L, 3.2L, 3.4L, 3.5L, 3.6L, 3.8L, 3.9L, 4.2L, 4.3L, 4.4L, 4.6L, 4.8L, 5.0L, 5.3L, 5.7L, 6.0L, 6.2L, 7.0L, 7.4L, 8.1L Gas Powered Engines Only


Models: 2006-2009 GM Passenger Cars and Light Duty Trucks

2006-2009 HUMMER H2, H3

Excluding Pontiac Vibe, G8, Chevrolet Aveo, All Saturn and Saab Models




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Important: This bulletin applies to Gas Powered Engines ONLY. For Diesel Powered Engines, refer to Service Bulletin #08-06-04-006A.

If a suspicious hard part failure is observed in the engine, transmission, transfer case or driveline, perform the calibration verification described to determine if a non-GM issued engine calibration is installed. Non-GM issued engine calibrations subject driveline components to stresses different than the calibrations which these components were validated to. Repairs to transmission, transfer case and/or other driveline components where a non-GM engine calibration has been verified are not covered under the terms of the New Vehicle Warranty.

Instructions for Confirming Calibration Verification Number (CVN):


Go to TIS2WEB
Select "Calibration Information (SPS Info)"
Enter VIN
Select "Get Cal ID"
Select "ECM Engine Control Module"
Select "Next"
Select "Complete History"
Print
Take the printout to the vehicle along with the Tech 2

Looks like i cant post it all in one post so here's part 2:

Plug in the Tech 2
Go to diagnostics and build the vehicle
Select "Powertrain"
Select "Engine"
*Select "Engine Control Module" or "PCM"
*Select "Module ID Information" or "I/M Information System" if module ID information selection is not available.
*If "I/M information System" was selected in step 15, it may be necessary to select "Vehicle Information" in order to display the calibration information.
Compare the calibration ID and Calibration Verification Numbers (CVN) to the Calibration Verification Numbers (CVN) on the printout.
* Steps may vary by controller.

Although the part numbers will be the same for each, it's the CVN that will determine if the calibration is GM issued. If ALL of the CVN's are EXACTLY the same, the calibration is GM issued.

If the part numbers match and ANY CVN's DO NOT match the printout, it is likely that a non-GM certified calibration has been installed.

If the CVN information is displayed as "N/A", it will be necessary to contact the TCSC to obtain the CVN information.

If a non-GM calibration is found to be in the ECM (CVN's on the Tech 2 do not match TIS printout) - In order to document the case -- a CLEAR digital picture should be taken of the Tech 2 screen showing the VIN and the CVN's that do not match the TIS2WEB printout. The picture, VIN and reason the vehicle is currently in for service should be emailed to JAY.DANKOVICH@GM.COM and STEVEN.R.BRIDSON@GM.COM for verification. Please copy your GM District Service Manager (DVM) on the e-mail. GM will verify if the CVN's are not GM issued and respond via e-mail within 72 hours.

GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.

WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION

2008 General Motors Corporation. All rights reserved

Yeah they have had that ability for a couple years.

I checked mine for giggles and it showed that it was editied.... non-known calibration

So what if you flashed your original .bin to your PCM before bringing the car in? Does the PCM maintain an audit log of every entry made?

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(might be bringing this back from the dead) but if something were to go wrong, couldn't you just swap back to your OEM ECM and be good to go?

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2007 G6 GTP 3.6L, VMS Tune, Dual Magnaflow Exhaust, CAI, 6000K HID, 18" Zyoxx ZX8 245/40/18, Alpine Type R Subs

That's what I was saying.

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so if u have an after market pcm that u swap everytime u go to service, would they know that?

unless your PCM logs it, you wouldn't know.
just get an extra PCM if you're worried about it and swap it out.

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Everything needs more Corsa. No exceptions.

Follow my journey of flight at
http://alwaysastudentpilot.blogspot.com/

Thats wat i got, is an extra one, the factory one goes in everytime car is in the shop, so i guess they cant figure that out!

kcuf, so us with the G8's and only one pcm using the superchips, we are f**ked

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Custom Tails to come eventually, possibly, hopefully!

well you probably voided your warranty nick.

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Everything needs more Corsa. No exceptions.

Follow my journey of flight at
http://alwaysastudentpilot.blogspot.com/

thanks for the vote of confidence

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Custom Tails to come eventually, possibly, hopefully!

just being truthful. that's one of the big reasons i didn't buy a g8, couldn't mod it like i wanted to. couldn't get out of it what i desire without voiding a warranty.

_________________
Everything needs more Corsa. No exceptions.

Follow my journey of flight at
http://alwaysastudentpilot.blogspot.com/

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'02 Galaxy Silver GTX Coupe. SLP Headers, SLP cat-back exhaust, SLP 1.8 RR, ZZP 3.4/3.25" MPS, SLP hood, SLP CAI, Overkill PCM, 180 t-stat, SSIC, S1 TB, AL 104's, F/R STB's, F-body calipers.

They can tell is the vehicles computer has been removed or not, there are many many markings that they use at assemble to determine if there is warranty fraud happening or not. Just little tiny inspection marks in the correct color for that models assembly line are enough to tell them if things are fishy or not. it wont be in a log, its all visible evidence that will either be there or not. Easiest way is to check the color ans date stampings if they still do that.
Im waiting to find out what happens in DC and Detroit before I even think about changing my thermostat.

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N.R.A Life Member.

I saw that, but I read somewhere else that the G8 was included

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Custom Tails to come eventually, possibly, hopefully!

Once scan and they'll know, they're not dumb.

_________________
Everything needs more Corsa. No exceptions.

Follow my journey of flight at
http://alwaysastudentpilot.blogspot.com/