Range Technology V8 AFM Disable Module

HondaHawkGT · November 20, 2015

The mpg hit from disabling AFM is pretty minor. I'm surprised to hear you had to add oil though. I haven't had any oil consumption through 15k miles. Haven't heard any reports of it with the new engines.

AhuraPro · November 23, 2015

Hi Guys,

I just picked up my Range AFM for my new 2015(sept) Sierra 1500 6.2L 4x4 crewcab. For some reason every time I start my truck the Range is NOT on. I have to pull it out and plug it back in, and then it works(gets blue lights and doesn't go into V4). Does anyone else have this problem??? I assume this is not a normal thing. If so, please advice.

Thanks in advance.

Mike

I had an intermittent issue similar to yours on my previous 2010 Silverado except the blue lights would come on and it would still slip into V4. Its a connection issue and I haven't had any issues with my 2015 using the same device. You can email RANGE and let them know, if its under a year old I think they'll support it.

Silverado-Hareek · November 24, 2015

Just bought a new 1500 Sierra 2015 and at 1000 miles oil is needed. Is this a result of the AFM? If so, Does the Range technology device stop oil consumption. If disabling the AFM, I guess that

will also cut the miles per gallon. Any advise would be helpful. Thanks in advance.

At that low mileage, maybe someone just screwed up and didn't put enough in? I would top it off and get the level right, and then begin to monitor it and see if you're actually losing anything or not.

CueBaller · September 24, 2016

Hi Guys,

I just picked up my Range AFM for my new 2015(sept) Sierra 1500 6.2L 4x4 crewcab. For some reason every time I start my truck the Range is NOT on. I have to pull it out and plug it back in, and then it works(gets blue lights and doesn't go into V4). Does anyone else have this problem??? I assume this is not a normal thing. If so, please advice.

Thanks in advance.

Mike

Ok, has anyone successfully used the Range AFM disabler on a 2016? I got mine yesterday and am having this same issue on my 2016 Silverado 5.3. If it's already installed when I start the truck, it does nothing... but if I unplug it and reinstall it (with the engine running), it works.... until i turn the truck off again.

According to the sticker on the box, this is version 7.7R4, dated August 10th, 2016.

Dnt · September 24, 2016

I almost ordered a Range but after researching I ordered a hand held programmer that allowed me to set a minimum speed for the AFM to be active. Currently I have it set at 50mph. I bet if range could figure out a way to program that into their units they would be making MANY more sells. I have a dual exhaust and the V4 mode exhaust note is annoying to me at low speeds but perfectly fine at highway speeds. The highway speeds are where the AFM really does it gas saving magic so if you can set it this way it should be the best of both worlds

dorkweed · September 24, 2016

Living in suburbia, I use M5 for most all of my driving around home. I only use the Range AFM Disabler on long highway runs/trips. I still pull 21-22mpg on the highway in V8 mode running the Range on a truck with just over 5000 miles now..................................and thats with a truck that has almost 1000lbs. in the bed at all times. I've still not performed my first oil change yet; and the oil level on the dipstick has remained constant since bringing her home. 99% of the run time on my truck has been in V8 mode.

Dnt · September 25, 2016

Probably right it should not make much difference in real world gas mileage. So far at a little over 5000 miles this CC 6.2 8spd truck has averaged right at 20mpg mostly city with lots of idle time and remote start cooldowns plus have pulled my enclosed trailer probably 4 or 500 miles. So far this is much better than my 5.3 6spd 2014 did mostly pleased with the truck but would be sweet if it would drive itself once in a while (like a google car) when I want to take a nap.

silveradosid · September 26, 2016

cueballer mine does the samething, was sent in and updated. i have disassembled it to see if there was a loose connection and found nothing wrong. i have now installed a switch so i can turn it off and on, now i dont have to unplug it all the time. dont waste your time contacting range their tech support is useless

SkiBum5.0 · September 26, 2016

Guys, I'm about to send my 2nd Range device back. Both times it has triggered a CEL and made the truck drive like it's stuck in a foot of mud. Both units were the newest version. Has anyone else had this issue?

OldBlue61 · September 26, 2016

I almost ordered a Range but after researching I ordered a hand held programmer that allowed me to set a minimum speed for the AFM to be active.

What did you order? Link?

CueBaller · September 26, 2016

I'm considering just sending it back and adjusting the way I drive a bit; try not to be so light-footed on the pedal.

The wife and I took a trip out to Missouri wine country for dinner the other night, and I was a bit more aggressive with the throttle when I needed it, rather than easing into it the way I have been (which usually results in a few seconds of seemingly bogged down V4 mode before it kicks into V8 and does what I want it to).

About a 120 mile round trip, about a third of which was hills/curves (lots of accel/decel action), and averaged over 24mpg for the trip.

Dnt · September 26, 2016

What did you order? Link?

HyperTech Max Energy 2.0 part 2000 is what I use. I bought it at AutoAnything a bit over 300 bones so a lot more expensive that range but I wanted more versatility than just AFM on or off. Does not have a lot of current programming options for the 2016 models but apparently you can download upgrades for free as they become available? Not sure that I will actually use it for anything other than AFM control since when I set it for a premium fuel tune I got a DIC light after a week and immediately went back to factory tune. I suspect a bad tank of fuel as we have had a spotty gas shortage in middle TN and I suspect that my local Shell station sold me regular grade fuel for premium fuel since this happened right after my last fillup with (supposedly) 93 octane fuel. In the next few days they had a sign up that premium was no longer available that they had regular fuel only "yeah right". Probably much safer with the factory tune unless you have a proven source for premium fuel IMO

MrNasty · September 28, 2016

I have a 2015 6.2 and my wife drives a 2015 5.3 and both use the Range and havnt had any problems. We did buy ours direct from Range but all should be the latest version by now.

TedH · February 10, 2017

HyperTech Max Energy 2.0 part 2000 is what I use. I bought it at AutoAnything a bit over 300 bones so a lot more expensive that range but I wanted more versatility than just AFM on or off. Does not have a lot of current programming options for the 2016 models but apparently you can download upgrades for free as they become available? Not sure that I will actually use it for anything other than AFM control since when I set it for a premium fuel tune I got a DIC light after a week and immediately went back to factory tune. I suspect a bad tank of fuel as we have had a spotty gas shortage in middle TN and I suspect that my local Shell station sold me regular grade fuel for premium fuel since this happened right after my last fillup with (supposedly) 93 octane fuel. In the next few days they had a sign up that premium was no longer available that they had regular fuel only "yeah right". Probably much safer with the factory tune unless you have a proven source for premium fuel IMO

How does it elim AFM? Is it an ON/OFF option on the tuner?

I just ordered the latest Range unit but was curious how the tuner devices shut AFM off.