Brian Handy

so, with all my auto8 issues, now 8k miles I purchased the Range AFM delete, took 5 minutes of driving and now so much less noise under the hood! The car drives different with it and massively smoother, holy crap the smoothness will ruin ya! It's that good and now I don't hear the scratching at idle or idle in gear, very interesting indeed. I'm not sure if I'm shocked, surprised, or angry because I thought I had to live with the rough, but with Range it's glass smooth, not sure if it's the AFM valves we hear closing scratching or what but with the AFM delete there is too massive of a positive here gents! Quiet, smooth, not sure how to feel here.

Brian in Bakersfield...

mountainears

I'm just waiting for Range to fix their CEL issues with 2017's and newer. I was on their beta for the latest code and that continued to throw check engine lights. Hopefully they'll get that solved soon.

Brian Handy

good to know with their cel issues on newer, my dad just purchased 2017 GS 👍

Onrails

Had a range afm for my Camaro. Would make my car stall occasionally at intersections. Sometimes had to wait a minute before it would start again. Sent in for several updates. Problem still persisted. Looks like their product is still hit and miss.

YO-EL

Another alternative is the Diablosport tuner where you can tune out AFM, with 0 issues...

CP

Yeah, but then your warranty goes away. Who wants that?

Beezvette

Another alternative is to put it in M and shift manually. I have been doing this with my A6 for 3 years and it becomes natural, just like shifting manual without the workout on your left leg.

Flame Red

If you don't daily drive your car and have a Range: How To: Range AFM Disabler – No More Parasitic Battery Drain via Relay in Cord

Also, Diablo make a similar module to Range, which is not a tune so no warranty issues, but when I asked them they said it had the same parasitic battery drain. I have asked if anyone actually use the Diablo module or if it is a copy of the Range one and no one knows.

I have also asked if anyone who had a Range installed had the TC problems. In other words, does the V4 mode actually break the TC. No responses as to anyone that had a Range installed had the TC failure, so perhaps V4 does indeed

Also, another question I have is does the AFM eliminator devices sold on this forum a better alternative to the Range? EV AFM delete modules

mountainears

I think those modules are for actually replacing the valves (remove them from the car or relocate them) and an ECM modification which is a warranty buster.

The Range device is a very simple, non-warranty impacted device if they can get past the CEL issues in newer cars. You can actually use them in newer vehicles if you're very persistent in how you use them and avoid getting CELs, I just don't want that headache so I'm waiting for them to fix it. I'm not concerned about battery drain either so I'm not adding the switch.

YO-EL

Complete BS..
GM can't/won't void your warranty because of the flash count on the PCM..

NSC5

Flash count is part of what GM (and other manufacturers) use to conclude that the software HAS been changed outside of the GM system. And the oft incorrectly cited MM does not provide any warranty protection for people wishing to modify their vehicle in a way not intended by the original vehicle manufacturer.

From GM's standard warranty terms (also available on their division websites):

The New Vehicle Limited Warranty does not cover damage caused as a result of the following:

Alteration, modification, or tampering to the vehicle, including, but not limited to the body, chassis, powertrain, driveline, software, or other components after final assembly by GM.

It isn't up to GM to prove how your software change created an issue, only that the software was changed outside of the GM system.

thill444

I cannot find a single instance where someone has been denied warranty after they removed a Diablo Tuner. I don't have one, but I have been researching and it seems pretty safe.

mountainears

Not a risk I'm willing to take, especially when there is a potential drive train issue out there with automatics that could have a future warranty fix. Last thing I want is two years from now GM finally acknowledges an issue and comes out with a fix and I'm denied the fix because I flashed the car.

NSC5

Well at least one GM tech is going to disagree and I think you will find other instances. Warranty costs are a big issue to companies (why do you think they are trying to minimize costs of the A8 torque converter problem?) and there is no way they are leaving the latest generation of PCM/TCM open to easy stealth modification:

http://www.silveradosierra.com/perfo...357474-10.html

And one of the updated techlink articles: http://sandyblogs.com/techlink/?p=4248

Gonzo

What is the range ARM ?

mountainears

Range AFM. Plugs into the OBD connector to disable the AFM valves.
https://rangetechnology.com/afm-disabler/

YO-EL

PCM flash count does NOT indicate the software has been changed!

NSC5

The Range module plugs into the OBD-II port and prevents the engine from going into V4 mode. It doesn't change the tune so there is no warranty issue.

In addition to the sometimes annoying behavior of V4 mode its operation seems to be very strongly linked to the A8 torque converter failure due to the GM practice of constantly cycling the mechanical clutch on and off in V4 mode to create "micro-slips" to reduce the transmission of vibration generated from operating a V8 engine on only 4 cylinders.

PCM flash count indicates the number of times the PCM has been flashed and if the number of flashes don't equal the number of flashes done via GM then there is a problem.

And there is no GM warranty on your tuned horse that died on you.

YO-EL

There's plenty of people who have the ability to read their tune without any implications..
GM techs included..

Been thru all the know it alls in C5 for 18 yrs..
No one had their warranty voided by reading their pcm or using a K&N filter etc..
as you're stating or quoting...



Back to the OP's topic..

richie15

I just put one of the Range units in my Z06. So much better now. I also have a MILD2WILD setup on the exhaust and the constant popping,etc. when it went from V8 to V4 and back was super annoying. It's worse with the exhaust valves open. I also got an on/off switch so I don't have to worry about killing the battery as it is not driven regularly.