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Discussion Starter · #1 ·
Just purchased a 2013 Sierra. Seeing a lot of articles about disabling the AFM. What is the best way to go about disabling that and what all should be changed out?
 

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Super Moderator
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Most hand held tuners or range devices can turn it off. To “delete it” you have to change the lifters and cam


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Range is the brand.

But it only turns off afm

I prefer Diablo tuner.


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Discussion Starter · #5 ·
A
Main concern at this time is just to turn it off. When using the range disabler, is it ok still running with the stock oil pump?
 

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The great white Canadian
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1,751 Posts
Yes, the Range disabler just plugs into the OBD2 reader and stops the ECM from switching to 4cyl. No other modifications required.
 
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