Range AFM
Racer
Joined: Aug 2005
Posts: 304
Likes: 4
From: Shelton CT
My concern is that they mention some glitches and codes may show up. I emailed them and it sounds like they are still gathering data to provide a fix if it is needed. If it guaranteed no codes, I'd probably go for it. It would be nice if there was a switch on it so it could easily be turned on (No AFM) or off (AFM) without removing the module.
I like the AFM except when it impacts the NPP sound which is way to often on an automatic.
Ed
Thread Starter
Pro
Joined: Mar 2012
Posts: 636
Likes: 28
From: South Eastern MI Michigan
I'm interested too. $200 is an expensive "option"!
My concern is that they mention some glitches and codes may show up. I emailed them and it sounds like they are still gathering data to provide a fix if it is needed. If it guaranteed no codes, I'd probably go for it. It would be nice if there was a switch on it so it could easily be turned on (No AFM) or off (AFM) without removing the module.
I like the AFM except when it impacts the NPP sound which is way to often on an automatic.
Ed
My concern is that they mention some glitches and codes may show up. I emailed them and it sounds like they are still gathering data to provide a fix if it is needed. If it guaranteed no codes, I'd probably go for it. It would be nice if there was a switch on it so it could easily be turned on (No AFM) or off (AFM) without removing the module.
I like the AFM except when it impacts the NPP sound which is way to often on an automatic.
Ed
I agree. I have read about long term engine reliability also. The idea of AFM makes me nervous.
Team Owner
Joined: Sep 1999
Posts: 20,054
Likes: 44
From: Swansea IL
I will operate my new C7 for a month or two 100% factory stock and see how I like/feel about the AFM. Then hopefully by the time I need to make a decision we'll have more real world usage info.
I know Camaro and GM pick up owners have been using this accessory for sometime now. Those forums could be a good place to start asking questions.
I know Camaro and GM pick up owners have been using this accessory for sometime now. Those forums could be a good place to start asking questions.
Race Director
Joined: Jul 2007
Posts: 10,959
Likes: 2,641
From: Texas Hill Country
active fuel management has been around a long time under the name "displacement on demand."
you have a 100000 mile warranty. why on earth would you be nervous? just drive the car and if you want to modify it, do it right but understand there will be warranty implications. if you don't want to modify it and don't like something about it so much that it makes you unhappy, sell the damn car and buy something else.
you have a 100000 mile warranty. why on earth would you be nervous? just drive the car and if you want to modify it, do it right but understand there will be warranty implications. if you don't want to modify it and don't like something about it so much that it makes you unhappy, sell the damn car and buy something else.
Scraping the splitter.
Joined: Jun 2005
Posts: 8,111
Likes: 1,029
St. Jude Donor '13-'14-'15
I'm interested too. $200 is an expensive "option"!
My concern is that they mention some glitches and codes may show up. I emailed them and it sounds like they are still gathering data to provide a fix if it is needed. If it guaranteed no codes, I'd probably go for it. It would be nice if there was a switch on it so it could easily be turned on (No AFM) or off (AFM) without removing the module.
I like the AFM except when it impacts the NPP sound which is way to often on an automatic.
Ed
My concern is that they mention some glitches and codes may show up. I emailed them and it sounds like they are still gathering data to provide a fix if it is needed. If it guaranteed no codes, I'd probably go for it. It would be nice if there was a switch on it so it could easily be turned on (No AFM) or off (AFM) without removing the module.
I like the AFM except when it impacts the NPP sound which is way to often on an automatic.
Ed
S.
Thread Starter
Pro
Joined: Mar 2012
Posts: 636
Likes: 28
From: South Eastern MI Michigan
active fuel management has been around a long time under the name "displacement on demand."
you have a 100000 mile warranty. why on earth would you be nervous? just drive the car and if you want to modify it, do it right but understand there will be warranty implications. if you don't want to modify it and don't like something about it so much that it makes you unhappy, sell the damn car and buy something else.
you have a 100000 mile warranty. why on earth would you be nervous? just drive the car and if you want to modify it, do it right but understand there will be warranty implications. if you don't want to modify it and don't like something about it so much that it makes you unhappy, sell the damn car and buy something else.
Safety Car
Joined: Feb 2007
Posts: 4,939
Likes: 448
From: CHOCOWINITY NC
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Racer
Joined: Mar 2010
Posts: 489
Likes: 6
From: Brockton MA
I have one on my 2012 Silverado. Some ( a small percentage) of AFM vehicle owners are having fuel consumption issues. On the Silverados if/when the oil consumption is over there threshold they are replacing rings. Personally I DO NOT like AFM and wish I could disable it without warrantee concerns. The unit just plugs into the OBD port and is easily removed and installed and leaves no traces like a tune. I got mine for $149 on sale through a forum where autoanything was doing a 20% off special.
There may be issues with the one for the vette but I would not hesitate to use one based on my experience. Also on my Silverado I have a 6 speed auto transmission that when place in M5 does not go into V4 mode. So before the Range device I would have to drive in M5 on the highway or allow AFM to kick in.
There may be issues with the one for the vette but I would not hesitate to use one based on my experience. Also on my Silverado I have a 6 speed auto transmission that when place in M5 does not go into V4 mode. So before the Range device I would have to drive in M5 on the highway or allow AFM to kick in.
Melting Slicks
Joined: May 2001
Posts: 2,596
Likes: 120
From: East Tennessee
If the range thing worked I'd spend the 200. My cars sounds like crap, almost like a header leak, if you give it just enough throttle in V4 at a certain speed/RPM with the roof off or windows open it sounds pretty bad. Once V8 kicks back in the noise stops.
I tried two other auto c7s and they both did the same thing, dont think its really hurting anything but it sounds like poo. I'm sure you can get a manual car to do it too but since 99.9% of people with a manual dont drive with it in ECO mode I doubt they notice.
I tried two other auto c7s and they both did the same thing, dont think its really hurting anything but it sounds like poo. I'm sure you can get a manual car to do it too but since 99.9% of people with a manual dont drive with it in ECO mode I doubt they notice.
Safety Car
Joined: Sep 2007
Posts: 4,168
Likes: 21
From: Sunniest city on Earth
Can't you guys just turn it off in the tune like everybody else can? Why does everybody want to add all these things to trick the car into not doing things (CAGS bypass, AFM bypass, etc) when there are options in the tune to do it, often for less money?
Race Director
Joined: Jul 2007
Posts: 10,959
Likes: 2,641
From: Texas Hill Country
they are concerned about their warranty
Race Director
Joined: Jul 2007
Posts: 10,959
Likes: 2,641
From: Texas Hill Country
we really don't know what gm can or can't see if they are looking. if afm fails or a device sets a code, just because it gets removed doesn't make the car work properly or the code go away. even if the cel goes back off the code stays logged.
products of dubious value have been available since money dick was a minnow.
Safety Car
Joined: Sep 2007
Posts: 4,168
Likes: 21
From: Sunniest city on Earth
lots of people feel plugging in a device and then removing it for service is safer and different from actually doing it right and modifying the ECM programming. it's less scary.
we really don't know what gm can or can't see if they are looking. if afm fails or a device sets a code, just because it gets removed doesn't make the car work properly or the code go away. even if the cel goes back off the code stays logged.
products of dubious value have been available since money dick was a minnow.
we really don't know what gm can or can't see if they are looking. if afm fails or a device sets a code, just because it gets removed doesn't make the car work properly or the code go away. even if the cel goes back off the code stays logged.
products of dubious value have been available since money dick was a minnow.
Plus, I think a tune altering ONLY the AFM or CAGS programming wouldn't even be noticed at all, since that stuff is not something that typically gets checked for when GM is investigating warranty claims in the first place
Race Director
Joined: Jul 2007
Posts: 10,959
Likes: 2,641
From: Texas Hill Country
to be fair, a real tune/flash trips the counter even if all you change is one thing, even tire size. the only one that appears to not trip the traditional counter is the diablotune handheld device but that's not the best option, good for most people near stock, but not the best, and if you make any mods past a cai to your car, you need a real tune and your counter will be clicked.
Scraping the splitter.
Joined: Jun 2005
Posts: 8,111
Likes: 1,029
St. Jude Donor '13-'14-'15
to be fair, a real tune/flash trips the counter even if all you change is one thing, even tire size. the only one that appears to not trip the traditional counter is the diablotune handheld device but that's not the best option, good for most people near stock, but not the best, and if you make any mods past a cai to your car, you need a real tune and your counter will be clicked.
I think you'd have a helluva' lot better chance of explaining away an "unknown accessory" plugged into the OBD port than why the ECM has been flashed.
S.