If you get a good tuner, you should not have a problem. I had MTI in houston tune mine and they have done thousands of LS tunes.
sub Chuck CoW for Houston
Any problems with a custom tune??
Thread Starter
Drifting
Joined: Feb 2007
Posts: 1,474
Likes: 2
From: LaVerne CA
Any problems with a custom tune??
has anyone had any problems with a custom tune... locked or unlocked? id love to get one soon just wanted to hear some feedback...if so ...what where the problems and how did you go about getting it fixed...was it a hassle..etc......no need to mention tuners... reply here or in PM's is cool....thanks
Mike
Mike
CF Senior Member
Joined: Feb 2006
Posts: 23,313
Likes: 25
From: Tucson Arizona
I vaguely recall seeing this posted before but no matter. I haven't had any issues with the tuning on my car but I have read a past thread or two where people have experienced some problems resulting from a tune. It is possible, however, if you go with a competent, experienced tuner you shouldn't have any problems.
You do run the risk of voiding significant portions of your factory warranty once you start altering the car's factory operating specs. I know my local dealership aggressively denies warranty service to anything even remotely related to a mod (I know they were really hot on chip-modified diesel trucks). I wish it were otherwise but I understand why this is.
You do run the risk of voiding significant portions of your factory warranty once you start altering the car's factory operating specs. I know my local dealership aggressively denies warranty service to anything even remotely related to a mod (I know they were really hot on chip-modified diesel trucks). I wish it were otherwise but I understand why this is.
Pro
Joined: May 2000
Posts: 610
Likes: 1
From: Midland Texas
St. Jude Donor '09-'11
Depends on the tuner and the software he uses. I use HPTuner and don't lock the tune when flashing it to the car. This way the car can be flashed by the dealer (and the tune lost) or by another tuner. Some tuners lock the tune so that it can only be read and changed by him. This is typical for a supercharger kit car, where flashing it back to stock can result in engine damage. Problem is that the car owner may have issues that need to be resolved locally and he can't do it. He has to return to the installer or send his computer in to be redone. This is inconvenient but not such a bad idea on a power added car.
Just ask the tuner what he is going to do. Ask him if he is going to lock the tune file so that only he can access/change it or not. If he is, then you will need to go back to him every time you want to change something.
Best way to proceed for most people is to buy HPTuner yourself, get your tuner to use HPTuner and to provide you with an updated file if needed that you can load to the car yourself but which you don't change yourself unless you know what you are doing. Then don't take the car to the dealer without telling them not to flash the computer.
Just ask the tuner what he is going to do. Ask him if he is going to lock the tune file so that only he can access/change it or not. If he is, then you will need to go back to him every time you want to change something.
Best way to proceed for most people is to buy HPTuner yourself, get your tuner to use HPTuner and to provide you with an updated file if needed that you can load to the car yourself but which you don't change yourself unless you know what you are doing. Then don't take the car to the dealer without telling them not to flash the computer.
Banned Scam/Spammer
Joined: Mar 2005
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St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16-'17
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Burning Brakes
Joined: Dec 2007
Posts: 1,030
Likes: 0
From: The Villages Florida
As noted in my signature, I have a handheld tuner by SuperChips that is wonderful for my 300C. I keep the handheld in the trunk in case I have to download the stock tune on short notice.
I am concerned with the tuners talked about here because if you go to the dealer for some issue, there is a strong chance of them seeing your new tune and at the very least re-writing to the stock tune. So the custom tune is bye-bye, as may be your warranty.
Give me some good info on that, please, and hopefully I'll get some better feelings about all of this.
I am concerned with the tuners talked about here because if you go to the dealer for some issue, there is a strong chance of them seeing your new tune and at the very least re-writing to the stock tune. So the custom tune is bye-bye, as may be your warranty.
Give me some good info on that, please, and hopefully I'll get some better feelings about all of this.
Safety Car
Joined: Sep 2006
Posts: 4,759
Likes: 52
From: L.A. aka TooDamnManyPeopleville Ca.
Has anyone had a custom tune loaded into a 2nd PCM that could be swapped out before taking it to the dealer?
Cost prohibitive?
Cost prohibitive?
Last edited by ILLUSHN; Jan 19, 2008 at 11:09 PM.
Racer
Joined: Nov 2005
Posts: 315
Likes: 0
In lieu of sending in your PCM, Ligenfelter offers (as part of their 616 hp package)the option of purchasing a new PCM, on which they install their tune; so I imagine any tuner could aquire a new PCM for about the same price and install their tune.
