Cancelling V4 Mode
Race Director
Joined: Apr 2017
Posts: 13,602
Likes: 12,865
From: Virginia
angeSupport@holley.com <tech@rangetechnology.com>
Bought a new Range Device from Range/Holley couple of weeks ago. Package still has warning not to leave plugged in for extended periods of time so I called and spoke to a rep who said it's still advisable to unplug device if your car isn't driven for long periods of time. Followed up with email, which is below. It clearly states to unplug if not driven for weeks. If you can't believe the manufacturer who can you believe?
Wed 12/16/2020 10:53 AM
To:
Jodie,
If the vehicle is not driven for weeks at a time we do not recommend leaving the unit plugged into the vehicle. If the vehicle is regularly driven or left for a week or so you would be fine, but if you are leaving it for weeks at a time it is advised to remove the unit from the vehicle when it is not in use.
Range Technology Support
1080 S. Depot Drive
Ogden, UT 84404
Toll-Free: 888-997-6515
Email: support@rangetechnology.com
www.rangetechnology.com
Hours: Monday-Friday 8AM-5PM Eastern Time
*** Due to the large volume of e-mail we receive, PLEASE include previous e-mails when responding. This will allow us to read the complete dialogue in one message and will result in quicker responses. Thanks! ***
Bought a new Range Device from Range/Holley couple of weeks ago. Package still has warning not to leave plugged in for extended periods of time so I called and spoke to a rep who said it's still advisable to unplug device if your car isn't driven for long periods of time. Followed up with email, which is below. It clearly states to unplug if not driven for weeks. If you can't believe the manufacturer who can you believe?
Wed 12/16/2020 10:53 AM
To:
- Jodie Pennington
Jodie,
If the vehicle is not driven for weeks at a time we do not recommend leaving the unit plugged into the vehicle. If the vehicle is regularly driven or left for a week or so you would be fine, but if you are leaving it for weeks at a time it is advised to remove the unit from the vehicle when it is not in use.
Range Technology Support
1080 S. Depot Drive
Ogden, UT 84404
Toll-Free: 888-997-6515
Email: support@rangetechnology.com
www.rangetechnology.com
Hours: Monday-Friday 8AM-5PM Eastern Time
*** Due to the large volume of e-mail we receive, PLEASE include previous e-mails when responding. This will allow us to read the complete dialogue in one message and will result in quicker responses. Thanks! ***
Melting Slicks
Joined: May 2005
Posts: 2,866
Likes: 123
From: gresham oregon
I have an M7 and use ECO mode quite often. The interesting thing about AFM is if even a very light load is placed on the drivetrain the engine will switch to V8 mode. If I am running in 7th gear at 70 mph on a level highway just the slight dips and rises in the surface due to the road construction process are enough to make the engine switch from V8 to V4 and back to V8. Since it is hard to find a truly level road most of the time the engine stays in V8 mode and only switches to V4 when the car runs into a dip in the surface.
If I place the transmission in 6th gear then the engine will run in V4 mode a lot more since there is more torque available to drive the car through the imperfections of the road and up slight rises. To go from V4 to V8 mode only takes a slight tickle of the throttle if I want to pass somebody. With the clutch engaged the switch from one mode to the other isn't discernible unless the exhaust is set to Track Mode. When the engine runs in V4 mode the valves are always closed due to the objectionable sound the exhaust makes when the engine is running in V4 mode.
Bill
If I place the transmission in 6th gear then the engine will run in V4 mode a lot more since there is more torque available to drive the car through the imperfections of the road and up slight rises. To go from V4 to V8 mode only takes a slight tickle of the throttle if I want to pass somebody. With the clutch engaged the switch from one mode to the other isn't discernible unless the exhaust is set to Track Mode. When the engine runs in V4 mode the valves are always closed due to the objectionable sound the exhaust makes when the engine is running in V4 mode.
Bill
Safety Car
Joined: Jan 2014
Posts: 4,496
Likes: 856
From: Walhalla South Carolina
From my understanding the TC is most active when switching from v4 to v8 and eliminating the switch will eliminate or lessen the wear on the TC. Plus just my opinion it can't be good long term for engine shutting down 4 cylinders. The Range will pull small millamps and probably will run battery down if left plugged in for l o n g periods of time. I have Had mine plugged in for 3 yrs and car on tender every time I pull in the shop. Never an issue.
Roadster Madness. 😠
Joined: Sep 2009
Posts: 6,292
Likes: 2,363
From: Ventura Co Ca
SoCal Regional Events Coordinator
St. Jude Donor '13, '20-'21
I thought it was disabled, until I found the insranr gas part of the gauge. Then, I saw it was going back and forth, quite a lot. It makes a difference in gas mileage and I use it on long trips.
Racer
Joined: Apr 2020
Posts: 425
Likes: 272
From: Cape Coral,FL
There is a lot going on when it goes into V4 the motor the TC get abused. I have a 2019 GS built 4/19 so I have the new trans fluid and bought the car new and had a range device within a few days. This car gets such good gas mileage I don't need to beat the heck out of the drive train to get another half mile per gallon. Maybe I will get the shutter maybe this has nothing to do with it (I highly doubt it). There are others that have done nothing and have no issues. Here is what I think "why chance it". The upside is slightly better gas mileage on a car that most barely drive and those that do drive it a lot or DD it you do you. If you think the few sheckles you save on gas is worth maybe messing up your engine or trans thats your right. I don't want to risk it I will do what I think will prevent the shutter from every rearing it's ungly head. Hell I have enough to worry about with these **** wheels, I don't need any other worries.
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Intermediate
Joined: Aug 2020
Posts: 49
Likes: 8
From: Murphy Texas
Administrator
Joined: Mar 2001
Posts: 368,414
Likes: 24,799
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 '26
NCM Sinkhole Donor
CI 5, 8 & 11 Veteran
One of the first mods I did to my 2014 was to install the Range Device. Bought it directly from Range Technology so got the latest update, which does not have the problem with draining the battery like the older versions did. So far I have been very pleased with the Range Device performance.
Pro
Joined: May 2020
Posts: 552
Likes: 489
From: Brooklyn NY
Finalist 2020 C7 of the Year -- Unmodified
I a little confused, as a first timer with a 2019 GS A8 I thought the only time my girl goes V4 is when I dial in the Eco mode.If so why not stay out of the Eco mode and you'll never go into V4
Race Director
Joined: Apr 2017
Posts: 13,602
Likes: 12,865
From: Virginia
disappeared.
Le Mans Master
Joined: Dec 2000
Posts: 5,348
Likes: 3,319
From the manual:
"With an automatic transmission, the system [Active Fuel Management]
is available in all modes, but is more
aggressive in Eco Mode."
Intermediate
Joined: Aug 2020
Posts: 49
Likes: 8
From: Murphy Texas
As ELK alluded to earlier, it's most likely more a warning to protect Range from potential liability as it's been pretty much common knowledge that a purpose of the V8.6R1 update was to address the battery drain issues. And reports of battery drain issues seems to have
disappeared.
disappeared.
Le Mans Master
Joined: Dec 2000
Posts: 5,348
Likes: 3,319
I see very little chance of actual legal liability and did not intend to indicate otherwise. I think Range is is merely being cautious in suggesting its unit be removed if the car is to sit "for weeks at a time." Customers will be annoyed if they leave their car for extended periods and the battery goes flat. Some will immediately blame Range, justified or not.
I am unaware of anyone having actually had an issue with the newer software so this appears to be a moot point.
As with many things this group obsesses over, do as you like. My Z06 is in storage now, with both the Range unit and a CTEK charger plugged in. I think I am good.
I am unaware of anyone having actually had an issue with the newer software so this appears to be a moot point.
As with many things this group obsesses over, do as you like. My Z06 is in storage now, with both the Range unit and a CTEK charger plugged in. I think I am good.
Last edited by Elk; Dec 18, 2020 at 10:41 AM.
Intermediate
Joined: Aug 2020
Posts: 49
Likes: 8
From: Murphy Texas
[QUOTE=Elk;1602687399]I see very little chance of actual legal liability and did not intend to indicate otherwise. I think Range is is merely being cautious in suggesting its unit be removed if the car is to sit "for weeks at a time." Customers will be annoyed if they leave their car for extended periods and the battery goes flat. Some will immediately blame Range, justified or not.
I am unaware of anyone having actually had an issue with the newer software so this appears to be a moot point.
As with many things this group obsesses over, do as you like. My Z06 is in storage now, with both the Range unit and a CTEK charger plugged in. I think I am good.[/QSo
That's quite the responsibility you have there Mr. Elk knowing that if you aren't aware of something then it couldn't possibly be true. And yes you should be good with your charger on your car while in storage. But it does nothing to cause me to doubt the manufacturer's advice. Just to be safe I think I'll unplug mine if I'm not going to be driving it for awhile as I don't want to bother with a charger.
Have a good Corvette Day
I am unaware of anyone having actually had an issue with the newer software so this appears to be a moot point.
As with many things this group obsesses over, do as you like. My Z06 is in storage now, with both the Range unit and a CTEK charger plugged in. I think I am good.[/QSo
That's quite the responsibility you have there Mr. Elk knowing that if you aren't aware of something then it couldn't possibly be true. And yes you should be good with your charger on your car while in storage. But it does nothing to cause me to doubt the manufacturer's advice. Just to be safe I think I'll unplug mine if I'm not going to be driving it for awhile as I don't want to bother with a charger.
Have a good Corvette Day
Le Mans Master
Joined: Dec 2000
Posts: 5,348
Likes: 3,319
Deep breath, Jodie. I do not take the position you claim. I am not asserting one way or the other whether the new Range devices deplete the battery or not, but rather merely discussing the matter. I provided my opinion and upon what it is based, using phrases such as "I think," "I believe," "it appears," "I suspect," "I sense," etc. Your attempt to paint me into a corner is ludicrous.
Again, do what makes sense to you. If you are afraid a Range AFM device is going to run down your battery unplug it.
Again, do what makes sense to you. If you are afraid a Range AFM device is going to run down your battery unplug it.
Last edited by Elk; Dec 18, 2020 at 12:27 PM.
