Engine noise???
03-30-2011, 09:53 PM
#21
Definitely not exhaust, 100% sure.
I put the headers on within a week of getting the truck and there are no gasket leaks or cracked welds.
The issue with GM will be the tune history.
If they look, which they are supposed to for internal engine issues they will see the tune changes and can deny me warranty.
I know the service manager and could simply ask him how they would handle but that would be admitting quilt without them looking into it.
It is almost sounding like a wrist pin now.
I put the headers on within a week of getting the truck and there are no gasket leaks or cracked welds.
The issue with GM will be the tune history.
If they look, which they are supposed to for internal engine issues they will see the tune changes and can deny me warranty.
I know the service manager and could simply ask him how they would handle but that would be admitting quilt without them looking into it.
It is almost sounding like a wrist pin now.
03-30-2011, 10:02 PM
#23
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In the US you are right, but the OP is in Canada and does not have the Magnusson-Moss act to fall back on.
03-30-2011, 10:10 PM
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I checked my tunes with hpt logs and an otc scanner and no knock retard, timing in low 20's in wot throttle, but you never know.
04-12-2011, 09:15 PM
#27
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I'm still working on this.
After a fair bit of research, I have concluded, that if I put my tune to stock, then do a
"read entire" and then a "write entire" my tune will not be exposed.
I have my origional calibration numbers and will confirm them on a friends tech2 before going back to the dealer.
After a fair bit of research, I have concluded, that if I put my tune to stock, then do a
"read entire" and then a "write entire" my tune will not be exposed.
I have my origional calibration numbers and will confirm them on a friends tech2 before going back to the dealer.
Last edited by Allgonoshow; 04-12-2011 at 09:28 PM.
04-12-2011, 09:57 PM
#28
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I'm still working on this.
After a fair bit of research, I have concluded, that if I put my tune to stock, then do a
"read entire" and then a "write entire" my tune will not be exposed.
I have my origional calibration numbers and will confirm them on a friends tech2 before going back to the dealer.
After a fair bit of research, I have concluded, that if I put my tune to stock, then do a
"read entire" and then a "write entire" my tune will not be exposed.
I have my origional calibration numbers and will confirm them on a friends tech2 before going back to the dealer.
http://www.camaro5.com/forums/showthread.php?t=79922
http://www.camaro5.com/forums/showthread.php?t=79484
04-13-2011, 06:01 AM
#29
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I thought so as well.
Your first link is for a "Retrieving Calibrations From a Global A Vehicle" ie Camaro
which is not the same as a tech2. Global A is laptop based.
The process in the latter part of the 2nd link is for the dealer, using a tech2, to take a snap shoot of the current calibration numbers and send it to the warranty police.
That snap shot is for the current calibration, and if the numbers match what is supposed to be in the truck based on the vin, then you should be ok.
There is no indication that there is any logging of previous tunes or calibration changes. It appears they look at the current stuff.
Also, there is inconsistancy in how dealers approach the tune issue, some check every vehicle with internal engine issues for correct calibration, some check none, some check suspect vehicles.
I got this info and a tool to get my correct cal #'s from some Gm guys on the HPT forums
I am hoping to confirm this on a tech2 today and will post up what I find.
Your first link is for a "Retrieving Calibrations From a Global A Vehicle" ie Camaro
which is not the same as a tech2. Global A is laptop based.
The process in the latter part of the 2nd link is for the dealer, using a tech2, to take a snap shoot of the current calibration numbers and send it to the warranty police.
That snap shot is for the current calibration, and if the numbers match what is supposed to be in the truck based on the vin, then you should be ok.
There is no indication that there is any logging of previous tunes or calibration changes. It appears they look at the current stuff.
Also, there is inconsistancy in how dealers approach the tune issue, some check every vehicle with internal engine issues for correct calibration, some check none, some check suspect vehicles.
I got this info and a tool to get my correct cal #'s from some Gm guys on the HPT forums
I am hoping to confirm this on a tech2 today and will post up what I find.
Last edited by Allgonoshow; 04-13-2011 at 06:37 AM.
04-13-2011, 02:03 PM
#30
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Well, got it checked with tech2.
First checked it with a tune, 3 numbers different
Then stock tune with codes turned off for headers and no speed limited, 2 numbers different.
Stock tune, just wrote calibration only, not full write, all ok.
The guy looked in the tech2 to see if there are any calibration logging menus and didn't see anything.
But, the tech2 can be networked and there are other functions and menus available that don't show up on stand alone mode.
So, there is conflicting info around on this subject, but in my case at least, the codes are back to stock. If they wanted to look deeper, they may be able to, but I can't say for sure.
So, I'm back to the dealer to see if they will look alittle deeper into my engine noise.
First checked it with a tune, 3 numbers different
Then stock tune with codes turned off for headers and no speed limited, 2 numbers different.
Stock tune, just wrote calibration only, not full write, all ok.
The guy looked in the tech2 to see if there are any calibration logging menus and didn't see anything.
But, the tech2 can be networked and there are other functions and menus available that don't show up on stand alone mode.
So, there is conflicting info around on this subject, but in my case at least, the codes are back to stock. If they wanted to look deeper, they may be able to, but I can't say for sure.
So, I'm back to the dealer to see if they will look alittle deeper into my engine noise.