AFM damage??
Race Director
Joined: Mar 2003
Posts: 10,789
Likes: 894
From: Northern Illinois
Oldtimer
Very interesting. The Range website just shows the AFM Disabler for a 2019 Corvette when I put my car info in. I'm guessing it's the same for the Stingray and the Z06. Forgive my ignorance, but is the only difference between the blue, red, and green is the color of the light display? 
Drifting
Joined: Jan 2016
Posts: 1,465
Likes: 450
Very interesting. The Range website just shows the AFM Disabler for a 2019 Corvette when I put my car info in. I'm guessing it's the same for the Stingray and the Z06. Forgive my ignorance, but is the only difference between the blue, red, and green is the color of the light display?
Race Director
Joined: Oct 2008
Posts: 16,671
Likes: 7,738
From: NJ
Tune time performance just disassembled their 16 Z06 4k miles on it about 2k of them with a 2300 and LTs and entire time V4 was tuned out. Car was running mid 9s at 140ish.
Said several afm lifters are trashed actual grooved in the cam as well.. also said blower filled with oil. Heads and valves all cooked up... looking at catch can now. Didnt plan on 4k miles having that bad of an issue.
Just food for thought. Have to be careful with catch can as some dealers will give you **** over it.
Last edited by 24/Eray; Mar 28, 2020 at 08:37 PM.
Racer
Joined: Nov 2015
Posts: 402
Likes: 53
From: Borger, Texas
COMMENTS BY RANGE:
Being a DISABLER, by definition, you will NOT see V4 Mode. On the latest AFM DISABLER Modules, the four blue lights are basically to indicate the unit is operating.
THEY WILL GO OUT WHEN THE VEHICLE IS NOT RUNNING as described below (Power Saving). The lights are as follows:
internal hardware diagnostic checks before going into full operating mode. Earlier modules may not cycle the LEDs (but still perform the hardware checks in "silent" mode).
During operation, it is normal to see the lights cycle and go on/off in different sequences sometimes appearing to dim or vary in brightness (or even almost go dark). The lights
are not really useful to you as the driver, but are used more for diagnostic or status indications when doing troubleshooting/verification. You will see the lights dim dramatically
as you slow down/brake. As long as the vehicle is staying in V8 the unit is operating normally.
Also, the units have a "SLEEP" mode where after you shut the key off and/or the engine is not running. All the LIGHTS WILL GO OUT and it will go into power saving mode.
This power saving mode is EXTREMELY low powered and on a normal capacity battery in normal temperatures (i.e. ~70 degrees F) it should not affect normal battery
voltage/charge for at least a couple of weeks (and probably much longer). The maximum draw in sleep mode is 6mA (and is nominally about 2-3mA).
The device will wake up again when you start the engine and the LEDs may cycle 2-3 times as the unit performs internal diagnostics. Earlier versions may not cycle the LEDs.
It may take up to 20 seconds (usually less) for it to start showing lights again ... this is NORMAL because it may take that long before we can send commands to the vehicle
(especially on a cold motor).
.
Being a DISABLER, by definition, you will NOT see V4 Mode. On the latest AFM DISABLER Modules, the four blue lights are basically to indicate the unit is operating.
THEY WILL GO OUT WHEN THE VEHICLE IS NOT RUNNING as described below (Power Saving). The lights are as follows:
- LED #1 - Power is ON and unit is AWAKE and vehicle is ready for commands
- LED #2 - RPM > 500 and Engine is Running (not cranking or stalled)
- LED #3 - Vehicle V8 mode is legal (no engine damaging DTCs present or other parameters out of spec)
- LED #4 - In active command mode and controlling the AFM
internal hardware diagnostic checks before going into full operating mode. Earlier modules may not cycle the LEDs (but still perform the hardware checks in "silent" mode).
During operation, it is normal to see the lights cycle and go on/off in different sequences sometimes appearing to dim or vary in brightness (or even almost go dark). The lights
are not really useful to you as the driver, but are used more for diagnostic or status indications when doing troubleshooting/verification. You will see the lights dim dramatically
as you slow down/brake. As long as the vehicle is staying in V8 the unit is operating normally.
Also, the units have a "SLEEP" mode where after you shut the key off and/or the engine is not running. All the LIGHTS WILL GO OUT and it will go into power saving mode.
This power saving mode is EXTREMELY low powered and on a normal capacity battery in normal temperatures (i.e. ~70 degrees F) it should not affect normal battery
voltage/charge for at least a couple of weeks (and probably much longer). The maximum draw in sleep mode is 6mA (and is nominally about 2-3mA).
The device will wake up again when you start the engine and the LEDs may cycle 2-3 times as the unit performs internal diagnostics. Earlier versions may not cycle the LEDs.
It may take up to 20 seconds (usually less) for it to start showing lights again ... this is NORMAL because it may take that long before we can send commands to the vehicle
(especially on a cold motor).
.
Race Director
Joined: Mar 2003
Posts: 10,789
Likes: 894
From: Northern Illinois
Oldtimer
This is interesting. I found it on the "On All Cylinders" website. Is this where a catch can comes in?
Engines with AFM use a high-volume oil pump. When you eliminate the AFM system, the extra oil is no longer needed. Excess oil will be pushed out of the pressure relief valve into the oil pan. This will spray oil on the bottom of the cylinder walls which can cause oil burning, especially in high-rpm engines.
Engines with AFM use a high-volume oil pump. When you eliminate the AFM system, the extra oil is no longer needed. Excess oil will be pushed out of the pressure relief valve into the oil pan. This will spray oil on the bottom of the cylinder walls which can cause oil burning, especially in high-rpm engines.
Drifting
Joined: Jan 2016
Posts: 1,465
Likes: 450
This is interesting. I found it on the "On All Cylinders" website. Is this where a catch can comes in?
Engines with AFM use a high-volume oil pump. When you eliminate the AFM system, the extra oil is no longer needed. Excess oil will be pushed out of the pressure relief valve into the oil pan. This will spray oil on the bottom of the cylinder walls which can cause oil burning, especially in high-rpm engines.
Engines with AFM use a high-volume oil pump. When you eliminate the AFM system, the extra oil is no longer needed. Excess oil will be pushed out of the pressure relief valve into the oil pan. This will spray oil on the bottom of the cylinder walls which can cause oil burning, especially in high-rpm engines.
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Pro
Joined: Jan 2018
Posts: 650
Likes: 219
From: Lake Worth FL
This is interesting. I found it on the "On All Cylinders" website. Is this where a catch can comes in?
Engines with AFM use a high-volume oil pump. When you eliminate the AFM system, the extra oil is no longer needed. Excess oil will be pushed out of the pressure relief valve into the oil pan. This will spray oil on the bottom of the cylinder walls which can cause oil burning, especially in high-rpm engines.
Engines with AFM use a high-volume oil pump. When you eliminate the AFM system, the extra oil is no longer needed. Excess oil will be pushed out of the pressure relief valve into the oil pan. This will spray oil on the bottom of the cylinder walls which can cause oil burning, especially in high-rpm engines.
Race Director
Joined: Mar 2003
Posts: 10,789
Likes: 894
From: Northern Illinois
Oldtimer
My Range AFM Disabler arrived today . . . a day early. 
Plugged it in and took it for a drive. Actually, the first time I've driven it since taking it out of storage last week. I don't know if it's the disabler or the fact that I haven't driven my car in 5 months, but it seems slightly more responsive. What's really nice is it not going into 4-cylinder mode. I only put about 40 miles on today, but it seems like a winner at this point.
Plugged it in and took it for a drive. Actually, the first time I've driven it since taking it out of storage last week. I don't know if it's the disabler or the fact that I haven't driven my car in 5 months, but it seems slightly more responsive. What's really nice is it not going into 4-cylinder mode. I only put about 40 miles on today, but it seems like a winner at this point. 
Le Mans Master
Joined: Mar 2016
Posts: 9,165
Likes: 4,011
From: 2019 CMG Z06/ZR1
Have a Range on my 16 Tahoe. Love it, but it killed my battery when I was on a work trip and the truck was parked. Mailed Range my device for them to reflash with the latest update. Should have it back next week. Lesson learned, will stay unplugged if the car is going to sit.
In the vette, just use manual mode to avoid AFM
In the vette, just use manual mode to avoid AFM
The people at Range are awesome. They tested my device, noticed it was corrupted, reprogrammed and sent it back. All free of charge on a 5yr old unit. Can’t ask for better customer service.
Race Director
Joined: Jul 2018
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From: San Antonio, TX/Mahopac, NY
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Drifting
Joined: Jan 2008
Posts: 1,558
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From: Payson AZ