Range Device
Team Owner
Joined: Jul 2004
Posts: 28,426
Likes: 3,277
From: Hartford WI
I just bought this car (2017 Grand Sport) as a Certified Pre-Owned from a Chevrolet dealer a month ago and now I am anxiously awaiting to hear how much this repair is going to cost. $300? $3,000?
@JLSuperfly If you don't use your Range, I would be happy to buy it from you!
@JLSuperfly If you don't use your Range, I would be happy to buy it from you!
1. $300 or 15000, who cares? Not your money.
2. The more, the merrier. More things replaced, less old parts left behind.
Melting Slicks
Joined: Dec 2017
Posts: 3,458
Likes: 1,998
From: Columbus Ohio
I'm not sure why your Corvette Club members advised you to not use it, but after your repair (which I hope is covered by your car being CPO), I'll bet you'll think again about using the Range!
I Love My C7
Joined: May 2023
Posts: 3,367
Likes: 5,308
From: Go Bucks!…
2024 C7 of the Year Finalist - Unmodified
2023 C7 of the Year Finalist - Unmodified
The Range AFM Disabler has been top of mind for me lately.
I have been contemplating getting it to prevent lifter issues for a couple a weeks now but waited to talk to some Corvette owners at a local Corvette Club I just joined. I talked to 3 C7 owners about this and each said it is not necessary and they don't worry about it. Then as fate would have it, the check engine light comes on during my drive home from the Corvette Club meet up!
So I go to Autozone for an immediate OBD scan and it comes out P12F0 - Cylinder Deactivation Exhaust Flow Valve Stuck Open Bank 1.
I guess I will find out next week when the dealer runs its diagnostics but I can't help but wonder if I had the the Range, would this have been prevented???
I just bought this car (2017 Grand Sport) as a Certified Pre-Owned from a Chevrolet dealer a month ago and now I am anxiously awaiting to hear how much this repair is going to cost. $300? $3,000?
@JLSuperfly If you don't use your Range, I would be happy to buy it from you!
I have been contemplating getting it to prevent lifter issues for a couple a weeks now but waited to talk to some Corvette owners at a local Corvette Club I just joined. I talked to 3 C7 owners about this and each said it is not necessary and they don't worry about it. Then as fate would have it, the check engine light comes on during my drive home from the Corvette Club meet up!
So I go to Autozone for an immediate OBD scan and it comes out P12F0 - Cylinder Deactivation Exhaust Flow Valve Stuck Open Bank 1.
I guess I will find out next week when the dealer runs its diagnostics but I can't help but wonder if I had the the Range, would this have been prevented???
I just bought this car (2017 Grand Sport) as a Certified Pre-Owned from a Chevrolet dealer a month ago and now I am anxiously awaiting to hear how much this repair is going to cost. $300? $3,000?
@JLSuperfly If you don't use your Range, I would be happy to buy it from you!
Mine has been plugged in since we got the used A8 C7 almost 3 years ago. We have one in the Silverado too...I wish you the best of luck on what the dealership tells you. Keep us posted.
Team Owner
Joined: Jul 2004
Posts: 28,426
Likes: 3,277
From: Hartford WI
Drifting
Joined: Jul 2016
Posts: 1,885
Likes: 1,161
From: Keswick, Virginia
I plug in my Range device before I start her up. At the end of the day after shutting off the engine for the last time I unplug it and lay it by my shifter. This reminds me to plug it in before I take her out. Does anyone leave their Range device plugged in all the time. I always put her on the trickle charger after every drive.
When my wife had a 2019 Stingray with the A8, we bought a Range AFM device and left it plugged in all the time. No issues at all. My 2017 I had was an M7, so the V4 situation was never an issue. I never drove the car in "ECO" model.. Generally, I left in "SPORT" mode. It's not a Prius and is supposed to be a V8. LOL!
Last edited by JK 23112; Feb 23, 2026 at 09:27 AM.
Melting Slicks
Joined: Dec 2017
Posts: 3,458
Likes: 1,998
From: Columbus Ohio
Administrator
Joined: Mar 2001
Posts: 368,063
Likes: 24,731
From: In a parallel universe. Currently own 2014 Stingray Coupe.
C7 of the Year - Modified Finalist 2021
MO Events Coordinator
St. Jude Co-Organizer
St. Jude Donor '03 thru '25
NCM Sinkhole Donor
CI 5, 8 & 11 Veteran
I leave the Range AFM Eliminator plugged in all the time on my car. Not had any problems doing so.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
Race Director
Joined: Nov 2004
Posts: 15,678
Likes: 1,097
From: birmingham Alabama
St. Jude Donor '09 and '13
I have had the Range on both of my C7's. My current C7 is a M7. but if I take a trip and want the car in another mode, it is nice to know the engine will not go into 4-cylinder mode. I drive my C7 every day, so mine stays plugged in all the time.
