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Topic: Does anyone have experience with the GM 5.3 AFM systems?

in Forum: Non-Vette Automotive Discussion


Does anyone have experience with the GM 5.3 AFM systems?

Posted: 9/19/17 6:21am Message 1 of 9
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Kingston, PA - USA
Joined: 11/26/2003
Posts: 636
Vette(s): 1977 L-82 originally white/buckskin interior. Currently undergoing a frame-off resto. and modifications.YEEHAW!!!
Hi... I have a 2007 Tahoe with the 5.3 that has the OH-SO WONDERFUL active fuel management system.
I'm getting the OH-SO TYPICAL lifter tap, and I'm looking to do the AFM delete swap on it... I know thats a full cam and lifter swap, my question is... Is there any way to permanently re-program the ECM, or do I have to have that plug-in programmer plugged in forever?
Any help will be appreciated.



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Re: Does anyone have experience with the GM 5.3 AFM systems?

Posted: 9/19/17 11:18am Message 2 of 9
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Grapevine, TX - USA
Joined: 8/26/2006
Posts: 1525
Vette(s): 1972 LT-1 convertible with factory air. 2017 Black Rose Grand Sport convertible.
I have the Rage Technologies plug in thingy for my '14 Silverado.  Keeps it in V8 mode.


   

Re: Does anyone have experience with the GM 5.3 AFM systems?

Posted: 9/20/17 3:17am Message 3 of 9
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WEST SENECA, NY - USA
Joined: 12/3/2001
Posts: 2379
Vette(s): 1981 Blue Ice Met. w/pearl ghost flames TKO500 5speed. LS1 Swap 3.45 Dana 44.
AFM can be deleted by a tuner. They use programs like HP Tuner etc. to edit that out of the ECM. 
I had a local guy plug into my ECM when I was getting ready to fire up the '81 after completing my LS swap. He turned off most of the emission stuff and rear O2 sensors since I wasn't running all that stuff. 


|UPDATED|9/20/2017 3:17:17 AM (AZT)|/UPDATED|




GEN III 5.7L "LS6" Engine swap
TKO500 5 spd.
3.54 Dana 44
'69 "N11" Sidepipes
Borgeson Steering Box
Born 8/1981
Sequence #3975




Click here to see more pics of my Vette on CarDomain.


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Re: Does anyone have experience with the GM 5.3 AFM systems?

Posted: 9/20/17 5:14am Message 4 of 9
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Kingston, PA - USA
Joined: 11/26/2003
Posts: 636
Vette(s): 1977 L-82 originally white/buckskin interior. Currently undergoing a frame-off resto. and modifications.YEEHAW!!!
Thanks for the replies. I have to replace the lifters anyway. The AFM lifters actually have springs on them, and they all fail eventually...Might as well get rid of the system, and put regular hydraulic rollers in there, and eliminate that problem...
If you drive anything with the AFM system on it, even if you have the bypass plugger, the mechanical parts WILL FAIL on you. 
I will look into a programmer... Thanks for the help, guys!
Alan



Re: Does anyone have experience with the GM 5.3 AFM systems?

Posted: 9/20/17 8:13am Message 5 of 9
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Grapevine, TX - USA
Joined: 8/26/2006
Posts: 1525
Vette(s): 1972 LT-1 convertible with factory air. 2017 Black Rose Grand Sport convertible.
Why don't you try a forum more familiar with this engine?  gm-trucks.com is a pretty good one.


   

Re: Does anyone have experience with the GM 5.3 AFM systems?

Posted: 9/21/17 4:30am Message 6 of 9
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Kingston, PA - USA
Joined: 11/26/2003
Posts: 636
Vette(s): 1977 L-82 originally white/buckskin interior. Currently undergoing a frame-off resto. and modifications.YEEHAW!!!
I posted it on the Tahoe Forum... not a single reply.

I figured we're all car guys here, and know engines. It's also more friendly here than other sites.


|UPDATED|9/21/2017 4:30:15 AM (AZT)|/UPDATED|



Re: Does anyone have experience with the GM 5.3 AFM systems?

Posted: 9/21/17 8:45am Message 7 of 9
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Grapevine, TX - USA
Joined: 8/26/2006
Posts: 1525
Vette(s): 1972 LT-1 convertible with factory air. 2017 Black Rose Grand Sport convertible.
This guy seems to get a lot of good reviews on the truck forums.

http://www.diablewtune.com/



   

Re: Does anyone have experience with the GM 5.3 AFM systems?

Posted: 9/23/17 6:33am Message 8 of 9
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Kingston, PA - USA
Joined: 11/26/2003
Posts: 636
Vette(s): 1977 L-82 originally white/buckskin interior. Currently undergoing a frame-off resto. and modifications.YEEHAW!!!
Thank you


Re: Does anyone have experience with the GM 5.3 AFM systems?

Posted: 9/30/17 5:53pm Message 9 of 9
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WEST SENECA, NY - USA
Joined: 12/3/2001
Posts: 2379
Vette(s): 1981 Blue Ice Met. w/pearl ghost flames TKO500 5speed. LS1 Swap 3.45 Dana 44.

GEN III 5.7L "LS6" Engine swap
TKO500 5 spd.
3.54 Dana 44
'69 "N11" Sidepipes
Borgeson Steering Box
Born 8/1981
Sequence #3975




Click here to see more pics of my Vette on CarDomain.


Lifetime Member #26

in Forum: Non-Vette Automotive Discussion


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