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#1 |
Carpe manana
![]() ![]() Join Date: Dec 2010
Location: Eau Claire, WI
Posts: 12,383
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Anyone tried a disabler for active fuel management?
Curious if there’s a benefit at all with use of one of these diablers. Has anyone tried these or similar?
https://www.rangetechnology.com/prod...-dfm_disabler/
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1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 ![]() |
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#2 |
Senior Member
Join Date: Jun 2007
Location: Pine Ridge Florida
Posts: 4,125
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Re: Anyone tried a disabler for active fuel management?
I have had 1 in my 2012 chevy Silverado since buying it new.No problems and it doesn't go into cylinder deactivation.
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Click on my Not really a build thread, yet NOT SO RUST FREE RUST FREE BLAZER LS ENGINE SWAP INFORMATION THREAD BOLT RESTORATIONS 4l60 to an NP205 |
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#3 |
Carpe manana
![]() ![]() Join Date: Dec 2010
Location: Eau Claire, WI
Posts: 12,383
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Re: Anyone tried a disabler for active fuel management?
Thanks Mark. Did this improve performance at all or impact gas mileage?
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1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 ![]() |
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#4 |
Registered User
Join Date: Apr 2010
Location: Oregon
Posts: 1,184
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Re: Anyone tried a disabler for active fuel management?
I bought the Diablo tuner instead. Not much more money and several more features. You can get them refurbished at a good price, see the link.
https://www.ebay.com/itm/RFB-DiabloS...STRK:MEBIDX:IT
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1951 Truck, LS1/4L60 1964 Suburban, current project 2014 Silverado daily driver 1953 Westerner "canned ham" trailer, rebuilt 1974 Prowler trailer, rebuilt |
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#5 |
Senior Member
Join Date: Jun 2007
Location: Pine Ridge Florida
Posts: 4,125
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Re: Anyone tried a disabler for active fuel management?
All it did was disable AFM and that is all I wanted it to do. It has worked for 8 years without issue or causing problems.
__________________
Click on my Not really a build thread, yet NOT SO RUST FREE RUST FREE BLAZER LS ENGINE SWAP INFORMATION THREAD BOLT RESTORATIONS 4l60 to an NP205 |
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#6 | |
Senior Member
Join Date: Jun 2007
Location: Pine Ridge Florida
Posts: 4,125
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Re: Anyone tried a disabler for active fuel management?
Quote:
With that being said the Diablo has tons of great features. I would probably destroy something messing with the wrong file.
__________________
Click on my Not really a build thread, yet NOT SO RUST FREE RUST FREE BLAZER LS ENGINE SWAP INFORMATION THREAD BOLT RESTORATIONS 4l60 to an NP205 |
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#7 | |
Registered User
Join Date: Apr 2010
Location: Oregon
Posts: 1,184
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Re: Anyone tried a disabler for active fuel management?
Quote:
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1951 Truck, LS1/4L60 1964 Suburban, current project 2014 Silverado daily driver 1953 Westerner "canned ham" trailer, rebuilt 1974 Prowler trailer, rebuilt |
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#8 |
Carpe manana
![]() ![]() Join Date: Dec 2010
Location: Eau Claire, WI
Posts: 12,383
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Re: Anyone tried a disabler for active fuel management?
Thanks guys. My 2019 burb is still under warranty so am mindful of that.
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1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 ![]() |
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#9 | |
All about them K’s
![]() Join Date: Jun 2014
Location: Land of Entrapment
Posts: 6,376
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Re: Anyone tried a disabler for active fuel management?
Quote:
That said, the day is coming sooner than later that I’m gonna cam it and be done. I’m sure you already know but on the direct injected gen 5 engines, you gotta watch the carbon buildup on the intake valves. They have had some troubles there. A catch can is a great investment to help keep the valves clean.
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Tyler '57 3100 http://67-72chevytrucks.com/vboard/s...d.php?t=813888 '72 K20 Cheyenne http://67-72chevytrucks.com/vboard/s...d.php?t=662879 ‘69 K10 SWB http://67-72chevytrucks.com/vboard/s...d.php?t=805206 '98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 315/75/16's ‘87 IROC-Z all original 50K mile survivor TPI 305 IROC Blue ‘10 Camaro 2SS/RS Aqua Blue Metallic #93 -version 2.0 ![]() |
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#10 |
Carpe manana
![]() ![]() Join Date: Dec 2010
Location: Eau Claire, WI
Posts: 12,383
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Re: Anyone tried a disabler for active fuel management?
Tyler that helpful info. Thanks. If it’s the case I may get better mpg or save wear on the engine than I’ll jump on a disabler. I know next to nothing about this gen motor. I’ll check into a catch can too.
__________________
1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 ![]() |
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#11 |
All about them K’s
![]() Join Date: Jun 2014
Location: Land of Entrapment
Posts: 6,376
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Re: Anyone tried a disabler for active fuel management?
In my opinion your money ahead to get it disabled. I haven’t messed with any of the Gen 5 stuff but I know the lifters in the Gen 4 AFM systems are notorious for failure, often times wiping the cam with the failed AFM lifter.
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Tyler '57 3100 http://67-72chevytrucks.com/vboard/s...d.php?t=813888 '72 K20 Cheyenne http://67-72chevytrucks.com/vboard/s...d.php?t=662879 ‘69 K10 SWB http://67-72chevytrucks.com/vboard/s...d.php?t=805206 '98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 315/75/16's ‘87 IROC-Z all original 50K mile survivor TPI 305 IROC Blue ‘10 Camaro 2SS/RS Aqua Blue Metallic #93 -version 2.0 ![]() |
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#12 |
Carpe manana
![]() ![]() Join Date: Dec 2010
Location: Eau Claire, WI
Posts: 12,383
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Re: Anyone tried a disabler for active fuel management?
Yep. Last week I spoke w a guy who had similar first hand experience w this and that’s what sent me along this path. You’d think after many decades of engineering experience BS like this wouldn’t happen and a motor could reliably clock 300k miles.
__________________
1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 ![]() |
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#13 |
All about them K’s
![]() Join Date: Jun 2014
Location: Land of Entrapment
Posts: 6,376
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Re: Anyone tried a disabler for active fuel management?
Yes sir, I know exactly what you mean, it’s a gimmick and nothing more in my opinion. We’ve been looking at newer suburbans lately and I’m dreading dealing with it too. The Camaro only gets a couple thousand miles a year so it’s not a huge hurry to get it resolved. My wife is going to get the Suburban when we pull the trigger and it’s going to be her daily, so there will be a lot more haste in getting it disabled or deleted. I’d like to just delete it but to get to the lifters, the heads have to come off.
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Tyler '57 3100 http://67-72chevytrucks.com/vboard/s...d.php?t=813888 '72 K20 Cheyenne http://67-72chevytrucks.com/vboard/s...d.php?t=662879 ‘69 K10 SWB http://67-72chevytrucks.com/vboard/s...d.php?t=805206 '98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 315/75/16's ‘87 IROC-Z all original 50K mile survivor TPI 305 IROC Blue ‘10 Camaro 2SS/RS Aqua Blue Metallic #93 -version 2.0 ![]() |
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#14 |
Registered User
![]() Join Date: Feb 2003
Location: Mulvane, Ks.
Posts: 754
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Re: Anyone tried a disabler for active fuel management?
Needing to replace a vehicle that was totaled out. Looking at purchasing an older Tahoe if I can find one in my price range. I want to stay away from the afm if can.
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#15 |
Born Psycho
![]() Join Date: Feb 2001
Location: brentwood,cal,usa
Posts: 4,882
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we have seen several AFM lifter failures at the shop where i work, usually right around 100 K and yes it wipes out the cam too-permanent cylinder deactivation is what we call it. Jasper sells a calif legal engine with normal lifters on all 8 cylinders, it comes with a program to download in the vehicles computer so the CE light wont come on, it comes with an executive order number (calif smog legal crap) so it will pass cali emissions test. our smog machines will pick up any tune that has been installed-even if it has been removed it still leaves a "fingerprint" on the vehicles computer. you guys that live where you can still have fun with your vehicles are lucky.
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jerry moss 72 cheyenne super K20- tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,tow hooks,bumper guards,toolbox,aux. fuel tank,posi front and rear,plus other goodies!!! SOLD 69 suburban K20-tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,4 inch all spring lift,4 speed, 14 bolt full floater, dana 44 HD,warn winch,posi front and rear,tow hooks,plus other goodies. 73/80 chevy/gmc K20 SB400,turbo 400,205,tilt,a-c,gas hog. 77 K/5 cheyenne blazer-daily driver/beater. SON HAS IT NOW BRENTWOOD,CALIFORNIA |
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#16 |
Carpe manana
![]() ![]() Join Date: Dec 2010
Location: Eau Claire, WI
Posts: 12,383
|
Re: Anyone tried a disabler for active fuel management?
Thanks for the follow-up. I never went ahead with an AFM bypass and maybe I should re-visit this issue soon. I'd like the burb to last for a long time.
__________________
1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 ![]() |
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#17 |
Carpe manana
![]() ![]() Join Date: Dec 2010
Location: Eau Claire, WI
Posts: 12,383
|
Re: Anyone tried a disabler for active fuel management?
At 58k miles I finally got a catch can installed. Thanks Tyler.
__________________
1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 ![]() |
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