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Old 05-06-2005, 11:32 AM   #1
CBR600F4
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Member#: 80785
Join Date: Feb 2005
Location: San Diego, CA
Default AccessPORT: ECU Identifier

I just installed the AP on my 05 WRX wagon: from a quick run I did last night, it seems to work perfectly, with a noticeable improvement all over the powerband.
BUT... (there is always a "but") I'm a little confused about the ECU Identifier, which is something that can be set with the new Map Manager software.
Map Manager shows that my identifier is currently set to "AJ900 - 2005 WRX (AT)", while my car is manual. I can set the identifier to what seems correct for my car ("AJ890 - 2005 WRX (MT)"), but then I need to reflash the base map.
I called Cobb and they told me they set it by default to AT because "cars seem to run better", as if this identifier is something more than just a label (as I thought) on the ECU.
Does anybody know the full story? The guy I spoke with at Cobb didn't know much about it, he didn't seem to be technical.
Thanks,
Alex
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Old 05-06-2005, 11:47 AM   #2
stimpy
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It uses the ROM that COBB found to perform the best. The identifier code is merely a user-readable identifier for that particular ROM. When you switch the identifier code, all you are doing is making those that read that code think it is different than what is on the ECU.

-Jon
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Old 05-06-2005, 08:05 PM   #3
CBR600F4
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Quote:
Originally Posted by stimpy
It uses the ROM that COBB found to perform the best. The identifier code is merely a user-readable identifier for that particular ROM. When you switch the identifier code, all you are doing is making those that read that code think it is different than what is on the ECU.

-Jon
So you are saying that since they tuned their maps on an AT, these default to the AT ECU Identifier? Mmm, makes sense. And - I guess - all the new Map Management software does is to change the identifier in the Cobb's maps to whatever you want, before sending them the AP, which would explain why you must reload all maps on the AP, after changing the ID.
Anyways, I also sent an email to AccessECU, let's see what they say.
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Old 05-06-2005, 10:13 PM   #4
Jaxx
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its a fair chance that stimpy will return that email as he works at cobb..
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Old 05-09-2005, 08:35 PM   #5
CBR600F4
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Here is the reply from AccessECU (with my original email below):

Correct, the ECU Identifier is a label within the ECU. With the Map
Manager, you can adjust the label and the next time you flash a Base Map,
it will be retained. Even if you Revert to Stock, the label you choose
will be retained.

> Hi,
> I just purchased an AccessPORT from COBB Tuning, for my 05 WRX wagon. I
> noticed that the ECU Identifier, as reported by Map Manager, is set to
> "2005 WRX AT", while my car is a manual transmission. I ask Cobb, but
> their reply was not very convincing, so could you please explain if this
> identifier is simply a label on the ECU flash memory (so that diagnostic
> tools etc can identify it), or if it impacts in any way the way the ECU
> works?
> My understanding is that it's just a label, but they guy I spoke with,
> at Cobb, said that they use AT by default since (quote) it seems to work
> better.
> I would like to set the identifier to "2005 WRX MT" (I know I need to
> reflash the base map for that), so that the day I un-marry the AP from
> the car, the ECU will look absolutely stock, to any diagnostic tool of
> any kind.
> Thanks in advance and congrats for an excellent product!
> Alex
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