CAI or SRI, 2009 WRX, Moving to Cold Weather Soon - Page 2 - Subaru WRX Forum
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post #16 of 20 Old 05-17-2011, 03:43 AM Thread Starter
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Right but they hooked it up to the computer and didn't detect that it had been tuned, they checked everything out too because I asked them too as I had just bought the car. Maybe theyre just dumb, but hey if it works it works.

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post #17 of 20 Old 05-17-2011, 03:58 AM Thread Starter
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Right but they hooked it up to the computer and didn't detect that it had been tuned, they checked everything out too because I asked them too as I had just bought the car. Maybe theyre just dumb, but hey if it works it works.
#### it lol, if I bring it in and they tell me they wont work on it, I'm pretty sure theres a place in LA that is tuner friendly (a subaru dealer) my buddy has a decked out Evo, hes getting a meth kit in it and everything and mistubishi still deals with him so I'll figure it out.

Frankly, if they deny my warranty, all that means is I'm buying a downpipe, and a cat witha bigger can...like yesterday lol

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post #18 of 20 Old 05-17-2011, 09:59 AM
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They aren't going to look that into it, unless they want to deny a warranty. But, they will basically check the checksum vs another WRX that they know/trust to be stock and will compare it.

Here is the Cobb answer straight off their website. CobbTuning.com - AccessPORT - Frequently Asked Questions (FAQ)

Q. Can a dealer detect that I have an AccessPORT installed?

A. Yes, this is possible unless you use the [Revert to Stock] menu option to load a purely stock program on the ECU. While the vehicle can be serviced by the dealership in the same way as a stock vehicle, and all the Dealer scan tools function 100% the same, the data on the ECU has a marker known as a "checksum". Whenever any data on the ECU is changed, this checksum value must be changed in order for the ECU to operate. If a dealership compares this checksum value against another stock car, the values will be different. If you use the [Revert to Stock] menu option to uninstall the AccessPORT from your vehicle, the checksum on the ECU is now a valid stock checksum. No markers are left by the AccessPORT when using the [Revert to Stock] menu option.

Kirt
378awhp/373wtq Custom Dom 3 & CBRD tuned 2006 STI.
"When in doubt...flat out" - Colin McRae
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post #19 of 20 Old 05-17-2011, 03:08 PM Thread Starter
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They aren't going to look that into it, unless they want to deny a warranty. But, they will basically check the checksum vs another WRX that they know/trust to be stock and will compare it.

Here is the Cobb answer straight off their website. CobbTuning.com - AccessPORT - Frequently Asked Questions (FAQ)

Q. Can a dealer detect that I have an AccessPORT installed?

A. Yes, this is possible unless you use the [Revert to Stock] menu option to load a purely stock program on the ECU. While the vehicle can be serviced by the dealership in the same way as a stock vehicle, and all the Dealer scan tools function 100% the same, the data on the ECU has a marker known as a "checksum". Whenever any data on the ECU is changed, this checksum value must be changed in order for the ECU to operate. If a dealership compares this checksum value against another stock car, the values will be different. If you use the [Revert to Stock] menu option to uninstall the AccessPORT from your vehicle, the checksum on the ECU is now a valid stock checksum. No markers are left by the AccessPORT when using the [Revert to Stock] menu option.

Yea I have been using the revert to stock option

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post #20 of 20 Old 05-17-2011, 04:46 PM
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Then you are in the clear brother.

Kirt
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