Possible to ONLY turn off AFM? - Pontiac G8 Forum: G8 Forums - G8Board.com
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post #1 of 7 (permalink) Old 12-25-2010, 10:29 AM Thread Starter
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Possible to ONLY turn off AFM?

Is it possible to use the Cortex to ONLY turn off AFM? NO changes to trans shifts, NO changes to timing
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post #2 of 7 (permalink) Old 12-25-2010, 11:28 AM
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Yes.
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post #3 of 7 (permalink) Old 12-25-2010, 01:49 PM Thread Starter
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Thanks for your response-

I am assuming your answer of yes is telling me that by choosing Stock With Options, and only disabling AFM it will in no way affect engine timing or shifting?

To me it seems like the shifts are different. Perhaps this is due to the reset/relearn process...
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post #4 of 7 (permalink) Old 12-25-2010, 04:05 PM
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You must go into "advanced tune" and manually select everything "stock" -- shift points for each gear, shift torque, everything. That's how I used to run my winter setup with teh superchips. Just AFM off and even stock shift torque.

It takes a while via the embedded menus the first time or two, but then you get the hang of it and going into advanced mode becomes second nature. I don't think I ever tuned "quick tune" ever. Always "advanced".

Hope this helps...

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2009.1 ZEPCOM MGM G8 GT
Kooks LT's, SOLO HFC & Mach Unbalanced with J-pipes, SLP Tips.
Livernois tune, VCM, FE3's, full Holden blue gauges conversion, iphone on display. Daily Driver FTW
The ZEPCOM G8 was SOLO's test mule
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Bought 3/30/2009, retired 7/18/2017 at 136k miles, still strong. Been a great ride, she will be missed!
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post #5 of 7 (permalink) Old 12-25-2010, 06:16 PM
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Quote:
Originally Posted by zepcom View Post
You must go into "advanced tune" and manually select everything "stock" -- shift points for each gear, shift torque, everything. That's how I used to run my winter setup with teh superchips. Just AFM off and even stock shift torque.

It takes a while via the embedded menus the first time or two, but then you get the hang of it and going into advanced mode becomes second nature. I don't think I ever tuned "quick tune" ever. Always "advanced".

Hope this helps...

--zepcom
Be aware that, even if you put everything to stock values, the tune is not completely stock, even with the SC 87 tune. There are no options to modify the timing values back to stock, and various other options have been modified by Superchips that you can't set to stock. The only time you might be able to get away with only the AFM turned off is if you manage to get the "Stock with Options" selection ability, but I personally don't have that as an option now and only came across it once during a series of updates. So, unless I'm missing something, you can't merely turn off AFM alone unless you can find "Stock with Options."

2009 PBM G8 GT
TVS 1900 Maggie w/2.8" pulley (9-10 PSI), Maximizer LTs, High Flow Cats, LS9 injectors, Rotofab CAI, LC-2 WB, 40A KB BAP, TR6ix plugs, self tuned [250+ flashes], Camaro Paddle Shifters, UPR catch can, 4300k HIDs, Remote Start Heated Seat Control Module , Aeroforce Interceptor Gauge, JBL GTO628's, JL 8w3v3's w/JBL P180.2, Bridgestone RE-11 tires
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post #6 of 7 (permalink) Old 12-25-2010, 07:51 PM
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That is correct.

It is more accurately described as "Superchips interpretation of stock" since they are unable to physically reverse-engineer the stock GM ECM and TCM tunes.

From my experience, they were close enough, at least in the older revisions of the superchips tuner (early 2's). I did notice a slight firmer shift when shiftpoints and shift torque were "stock" which was tons better than the factory craptastic loose shifting and hunting when dropping the hammer. The superchips "stock" was better than real stock; go figure!


2009.1 ZEPCOM MGM G8 GT
Kooks LT's, SOLO HFC & Mach Unbalanced with J-pipes, SLP Tips.
Livernois tune, VCM, FE3's, full Holden blue gauges conversion, iphone on display. Daily Driver FTW
The ZEPCOM G8 was SOLO's test mule
www.youtube.com/zepcom

Bought 3/30/2009, retired 7/18/2017 at 136k miles, still strong. Been a great ride, she will be missed!
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post #7 of 7 (permalink) Old 12-28-2010, 08:54 PM
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Quote:
Originally Posted by zepcom View Post
That is correct.

It is more accurately described as "Superchips interpretation of stock" since they are unable to physically reverse-engineer the stock GM ECM and TCM tunes.

From my experience, they were close enough, at least in the older revisions of the superchips tuner (early 2's). I did notice a slight firmer shift when shiftpoints and shift torque were "stock" which was tons better than the factory craptastic loose shifting and hunting when dropping the hammer. The superchips "stock" was better than real stock; go figure!
I agree that it's their interpretation of 'near stock' and that it's better than the actual stock tune, but I'm not sure I follow what you mean by "unable to physically reverse-engineer the stock GM ECM and TCM tunes." Superchips, with whatever sofware package they have, have been able to bypass the encryption and map out which areas of the ECM and TCM memory registers carry what type of information. By doing this, they are able to essentially reverse engineer since they can see the current values programmed by GM and work to improve them. While on the clubgp board I was in touch with another member who was doing exactly this by mapping through excel and editing bin files this way. It was a crazy impressive venture on his part, and although the PCMs in those cars are different from our ECM/TCM combination, I would personally consider this reverse engineering since it's digging down to the basic fundamental programming components in order to mimic them, but improve on their purpose.

2009 PBM G8 GT
TVS 1900 Maggie w/2.8" pulley (9-10 PSI), Maximizer LTs, High Flow Cats, LS9 injectors, Rotofab CAI, LC-2 WB, 40A KB BAP, TR6ix plugs, self tuned [250+ flashes], Camaro Paddle Shifters, UPR catch can, 4300k HIDs, Remote Start Heated Seat Control Module , Aeroforce Interceptor Gauge, JBL GTO628's, JL 8w3v3's w/JBL P180.2, Bridgestone RE-11 tires
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