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Disabling AFM

 
Old 02-10-2019, 10:09 PM
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DChapman
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Default Disabling AFM

my 2014 stingray non npp has only 13000 miles on it,should i consider disabling the afm before i start having lifter problems? are there issues with these on new vettes? would like to know more before moving on to a after market exhaust. had a 2010 ZO6 and was always worried about the heads on it but never had any problems with it and drove it to 60000 miles and it was still running strong. any suggestions?
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Old 02-10-2019, 10:33 PM
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BullittEV
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Arent the lifter issues with the Eco-mode that keeps firing on the same 4 cylinders?
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Old 02-10-2019, 10:47 PM
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Dcasole
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Originally Posted by BullittEV View Post
Arent the lifter issues with the Eco-mode that keeps firing on the same 4 cylinders?
That is what AFM is ....
For what it's worth,I have no clue if AFM is problem but I dropped a valve due to a broken valve spring at 34,000
I now have tune out AFM , for the few miles a gallon its not worth it to me , I want a V8

Dave
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Old 02-10-2019, 11:00 PM
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owc6
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Leave this particular problem behind.

Our Z06 LS7 issues aren't a concern for the LT engine.

Very few of of us have reported lifter issues for the 2014. I broke a valve spring at 80,000 miles, but I don't think I've heard of another case.
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Old 02-10-2019, 11:05 PM
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Well, now I have heard.

However, I have spent 99.999% of Time in M. I have only rarely driven in D, and that was only to test out something someone asked here.

Methinks a broken valve spring is a weak part. Mine was cyl. #8.
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Old 02-10-2019, 11:16 PM
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Vegas1500
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If your going to disable the AFM, it’s for the life of the torque....search function will find you with lots of reading.
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Old 02-10-2019, 11:21 PM
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Originally Posted by Vegas1500 View Post
If your going to disable the AFM, itís for the life of the torque....search function will find you with lots of reading.
Which is not an issue with the A6 (2014).
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Old 02-11-2019, 01:25 PM
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It's generally recommended to disable AFM?
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Old 02-11-2019, 01:39 PM
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Rebel Yell
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Originally Posted by BullittEV View Post
It's generally recommended to disable AFM?
It's more of a calculated choice than it is a recommendation. Many of us that have, and does own a "15-'17 C7 car with the A8 have had transmission and torques converter problems. In some cases many have reported that their car (including my previous '16) does much better when the AFM has been disabled. Mind you, this isn't all C7's in those years, and I have no idea what percentage of cars has problems. Many that have had problems, or in an attempt to avoid problems have bought the Range Technology V4 disabler. Just plug in into the OBD port, and no more V4 mode. I did, and it helped my '16. I now have a '19 GS with the A8, and have run the Range disabler since I bought the car. After owning one that had some issues, I ain't taking any chances with this one. The Range may not help one bit, but it may. I'm going to hang my hat on the "It may" catagory.

https://rangetechnology.com/

Last edited by Rebel Yell; 02-11-2019 at 01:42 PM.
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Old 02-11-2019, 02:00 PM
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Originally Posted by Rebel Yell View Post
It's more of a calculated choice than it is a recommendation. Many of us that have, and does own a "15-'17 C7 car with the A8 have had transmission and torques converter problems. In some cases many have reported that their car (including my previous '16) does much better when the AFM has been disabled. Mind you, this isn't all C7's in those years, and I have no idea what percentage of cars has problems. Many that have had problems, or in an attempt to avoid problems have bought the Range Technology V4 disabler. Just plug in into the OBD port, and no more V4 mode. I did, and it helped my '16. I now have a '19 GS with the A8, and have run the Range disabler since I bought the car. After owning one that had some issues, I ain't taking any chances with this one. The Range may not help one bit, but it may. I'm going to hang my hat on the "It may" catagory.

https://rangetechnology.com/
What he said

After reading all the posts about issues I disabled the AFM and have never looked back .. 39,000 miles and my trans shifts fine . Dont know if I ever would have had issues but did not want to find out

Dave
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Old 02-11-2019, 03:23 PM
  #11  
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Sold my '14 Z51 M7 with 52K on the clock and no issues with AFM (I used Eco Mode a lot)
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Old 02-11-2019, 03:28 PM
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If I never go into ECO mode, AFM never gets triggered?

2017 GS M7
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Old 02-11-2019, 04:42 PM
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Originally Posted by BullittEV View Post
If I never go into ECO mode, AFM never gets triggered?

2017 GS M7
Correct.
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Old 02-11-2019, 06:45 PM
  #14  
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Originally Posted by bullittev View Post
if i never go into eco mode, afm never gets triggered?

2017 gs m7
Originally Posted by owc6 View Post
correct.
x10
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Old 02-12-2019, 12:13 AM
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Originally Posted by BullittEV View Post
If I never go into ECO mode, AFM never gets triggered?

2017 GS M7
AFM will not be triggered in modes other than ECO if you have a manual transmission. If you have an automatic, AFM can be triggered in all modes, but more prevalent in ECO
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Old 02-22-2019, 12:04 PM
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Default Range Technology AFM disabler

Good afternoon All,

I just installed the Range Technology AFM disabler and WOW! what a difference it makes. This thing works exactly as advertised and makes driving my 2014 Stingray more enjoyable than ever. I highly recommend this add on.
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