Topic: Does anyone have experience with the GM 5.3 AFM systems?
in Forum: Non-Vette Automotive Discussion
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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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AFM can be deleted by a tuner. They use programs like HP Tuner etc. to edit that out of the ECM.
|UPDATED|9/20/2017 3:17:17 AM (AZT)|/UPDATED|
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|
TKO500 5 spd.
Borgeson Steering Box
Born 8/1981
Sequence #3975

Click here to see more pics of my Vette on CarDomain.
Lifetime Member #26

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

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

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
TKO500 5 spd.
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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