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03-01-2011, 12:57 PM | #1 |
Scooby Newbie
Member#: 252297
Join Date: Jul 2010
Chapter/Region:
NESIC
Location: A CARDBOARD BOX IN VT
Vehicle:2002 WRX STI MIDNIGHT BLACK PEARL |
Can dealer tell if accessport was on car??
If I run a accessport map on my car can the dealer tell that if I put it back to stock before bringing it in?
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03-01-2011, 01:03 PM | #2 |
Scooby Specialist
Member#: 136358
Join Date: Jan 2007
Chapter/Region:
NESIC
Location: Newington, CT
Vehicle:2006 WRX Limited 6mt/5x114/vf43/S204 |
yes and no. They can't tell its AP but they do see a flash date. If you have an issue, flash car to stock and bring it in and they see that it was flashed a few days ago it make them wonder. Some dealerships are easier going than others so depends on how they are I guess if they care.
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03-01-2011, 01:21 PM | #3 | |
Scooby Specialist
Member#: 151045
Join Date: Jun 2007
Location: Pennsylvania
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Quote:
Side note. Anyone living in NW Indiana stay away from the Portage dealership. Go to the one in Merrillville. |
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03-01-2011, 02:07 PM | #4 | |
Scooby Specialist
Member#: 157002
Join Date: Aug 2007
Chapter/Region:
South East
Location: Jacksonville, FL
Vehicle:2011 Street Mod STI 11.4 @ 127 |
Quote:
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03-01-2011, 04:53 PM | #5 | |
NASIOC Vendor
Member#: 4803
Join Date: Mar 2001
Location: Austin, TX
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Quote:
Travis COBB Tuning |
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03-01-2011, 07:03 PM | #6 |
Scooby Newbie
Member#: 252297
Join Date: Jul 2010
Chapter/Region:
NESIC
Location: A CARDBOARD BOX IN VT
Vehicle:2002 WRX STI MIDNIGHT BLACK PEARL |
Can dealer tell if accessport was used
So if I use the Accessport on my brand new Sti, and lets say the motor blows due to a bad ringland, The dealer won't hook up a scan tool and say " Your car has been re-flashed so this can't be covered under warranty" (Assuming that the accessport has been uninstalled prior to bringing it in?)
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03-01-2011, 07:14 PM | #7 | |
NASIOC Vendor
Member#: 4803
Join Date: Mar 2001
Location: Austin, TX
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Quote:
Best regards- Lance |
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03-01-2011, 07:39 PM | #8 |
Scooby Newbie
Member#: 261755
Join Date: Oct 2010
Chapter/Region:
Tri-State
Location: Lehigh Valley, PA
Vehicle:2010 WRX 5-Door Spark Silver |
I was told the ecu recorded the number of times it has been flashed.
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03-01-2011, 07:49 PM | #9 |
NASIOC Vendor
Member#: 4803
Join Date: Mar 2001
Location: Austin, TX
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There is no flash counter on the Subaru ECU. The dealer does not have the ability to use some form of scan tool to discover that your ECU has been reflashed once the AccessPORT has been uninstalled. I hope that this can help dispell any misunderstandings about how the ECU and AccessPORT work.
We understand that many users want to have fun, but would rather not have fun at the cost of a voided warranty due to some form of "black box" or flash counter. However, the Subaru ECU is not able to track such information. Once you uninstall your AccessPORT your ECU is 100%, OEM, Stock. You can install your AccessPORT with confidence! Travis COBB Tuning |
03-01-2011, 09:06 PM | #10 |
Scooby Newbie
Member#: 252297
Join Date: Jul 2010
Chapter/Region:
NESIC
Location: A CARDBOARD BOX IN VT
Vehicle:2002 WRX STI MIDNIGHT BLACK PEARL |
Accessport info
If the dealer can see the last time the ecu was reset, Say when an accessport was uninstalled, Would that be the same as if the battery was unhooked and the ecu reset by that means?
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03-01-2011, 09:23 PM | #11 |
NASIOC Vendor
Member#: 4803
Join Date: Mar 2001
Location: Austin, TX
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03-01-2011, 09:42 PM | #12 | |
Scooby Newbie
Member#: 159325
Join Date: Sep 2007
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Travis,
if the car has been previously tuned opensource and now running accessport, can Subaru detect the change of the checksum if the "0x5AA5A55A" trick has been used for the DBW 32 bits checksum (located at 0x00FFB80 for my sh7058)? thanx Mart Quote:
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03-01-2011, 10:39 PM | #13 |
Scooby Newbie
Member#: 253506
Join Date: Jul 2010
Chapter/Region:
NESIC
Location: Easthampton, MA
Vehicle:2014 WRX WRB |
Hmm...I've been reluctant to purchase an accessport for fear of voiding my warrant, but i might have to change my mind.
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03-02-2011, 01:45 AM | #14 |
Scooby Newbie
Member#: 250750
Join Date: Jun 2010
Chapter/Region:
NWIC
Location: washington
Vehicle:2006 sti black |
I flashed mine back to stock when i took mine in last and the dealership didn't mention anything about it
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03-02-2011, 07:56 AM | #15 |
Scooby Specialist
Member#: 212154
Join Date: May 2009
Chapter/Region:
South East
Location: fast performance tuning
Vehicle:02 billet crank pauter rods, pt5857, E85 |
Cobb,
I know with the v1 that when you flashed back to stock it left a footprint of code still on the stock rom. Are you saying the this has been corrected with the v2? If the ecu is flashed back to stock with a v2 accessport, then the rom copied from the ecu that none of your code would be left anywhere on the stock rom? Not that a dealer would have the know how to do this. Just sayin.... |
03-02-2011, 02:12 PM | #16 |
NASIOC Vendor
Member#: 4803
Join Date: Mar 2001
Location: Austin, TX
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Hi guys,
Just to clarify a few points. We have never heard of or seen a means for the dealer to detect a previously installed AccessPORT. That doesn't mean that such capability will not be added in the future or that it exists now on newer cars and the capability of the dealer to access it will be added later. There are many ways for a manufacturer to implement a flash counter that would make it difficult to find (or not immediately obvious). That said, the AccessPORT ver. 2 saves a copy of the existing ROM (i.e. ECU's image) before it flashes our custom ROM when you marry. When you uninstall the AccessPORT ver. 2, it puts the original back on. So, you are back where started and the AP does not leave any trace. The problem is that if a flash counter did exist (as is the case with some other manufacturers), it would be counting each reflash, whether that was by the dealer or by aftermarket flashing means (ex. AccessPORT, Ecutek, or Open Source). So, if the number of flashes didn't match the dealer's records, they could make an assumption that you were running an aftermarket tune. Again, we have never heard nor seen any evidence that a dealer has this capability for Subarus, but that is likely how it would work if they did. Bill |
03-09-2011, 08:14 PM | #17 |
Scooby Newbie
Member#: 276346
Join Date: Mar 2011
Chapter/Region:
South East
Vehicle:2011 Impreza WRX Red |
Noob here. Just purchased a 2011 WRX and the first thing i did was come here and look for this exact question. After reading about how lean our cars run and how dangerous it is, or people believe it is, it almost leads one to want to use AccessPort or some other tuning method to normalize the AF ratio.
With that said, running modified software is grounds for SOA to void your warranty if something does happen. Catch 22. Bill, you said that you have not seen code in the ECU that would show log the number of flashes. Can you tell us what years, or ECUs, you are basing this on? I would believe that you guys have good knowledge of what goes on in our ECUs, so if something was there, you'd notice it. |
03-09-2011, 08:20 PM | #18 |
Scooby Newbie
Member#: 93785
Join Date: Aug 2005
Location: central NJ
Vehicle:2005 STI White |
Cobb is most likely telling the truth. Stealership is most likely bluffing.
Call their bluff, don't flinch. |
03-09-2011, 08:25 PM | #19 | |
Scooby Newbie
Member#: 93785
Join Date: Aug 2005
Location: central NJ
Vehicle:2005 STI White |
Quote:
Bill, Identify the "some other" manufacturers. Don't be coy with us. Your patriotism toward customers is appreciated. |
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03-09-2011, 08:30 PM | #20 | |
NASIOC Vendor
Member#: 4803
Join Date: Mar 2001
Location: Austin, TX
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Quote:
Best regards- Lance Last edited by Cobb Tuning; 03-09-2011 at 08:34 PM. Reason: typo. |
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03-09-2011, 08:32 PM | #21 | |
NASIOC Vendor
Member#: 4803
Join Date: Mar 2001
Location: Austin, TX
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Quote:
Best regards- Lance |
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03-09-2011, 08:50 PM | #22 | |
Scooby Newbie
Member#: 276346
Join Date: Mar 2011
Chapter/Region:
South East
Vehicle:2011 Impreza WRX Red |
Quote:
Based on the graphs on your site, it is pretty much self explanatory: a tune is helpful to control lean A/F ratios. I guess i have no choice but to join the Stage 1 club. EDIT for my ****ty grammar... |
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03-09-2011, 10:07 PM | #23 | |
NASIOC Vendor
Member#: 4803
Join Date: Mar 2001
Location: Austin, TX
|
Quote:
Again, it is difficult to say anything with certainty regarding a current/future flash counter especially when you are dealing with the later CAN vehicles. You would literally have to purchase every new Subaru every year and tear it apart spending hundred of hours reverse engineering every module in the car. Subaru could be very sneaky in implementing this type of functionality if they wanted to. You can be sure that if Subaru did implement a flash counter and a dealer denied someone's warranty based on it, you would hear about it very quickly (especially on Nasioc). To date that has never happened. We would also argue that our off-the-shelf maps are safer in the later model Subarus where the OEM tune holds the car in closed loop well into boost. Bill |
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03-10-2011, 07:35 AM | #24 |
Scooby Specialist
Member#: 147522
Join Date: Apr 2007
Chapter/Region:
MAIC
Location: Nap town
Vehicle:2015 wrx Wrb |
how much longer is everyone going to comment on this issue,read each cobb post carefully.its stated several times that subaru can't detect a reflash. no matter how many ways you ask it,the answer is still the same.
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03-10-2011, 11:18 AM | #25 | ||
Scooby Newbie
Member#: 276346
Join Date: Mar 2011
Chapter/Region:
South East
Vehicle:2011 Impreza WRX Red |
Quote:
Quote:
I would say that this could be talked about forever as long as it stays in this thread and is constructive...possibly even stickied. This is great information, from the source, and i appreciate that they took the time to answer our questions and not just give generic replies. The only detriment to this thread is when people come in and say "Geez, this has been talked about before" or "The dealer cannot see you were flashed to a different software" or similar. It junks up an otherwise informative thread and has the ability to cause an argument. Again, thank you to Cobb for the thorough answers. |
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