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AFM adjustment question


Garrett76Zt

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  • 6 years later...

Sorry to bump an old thread but I just wanted to get some information regarding this. Im sure the answer will be helpful to some searching.

 

On what scale does adjusting the afm change engine function. Does tightening the dial say a 1/8 inch make the engine not even run or it hardly noticeable? Just wondering If I ever do this how much to start out doing.

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Sorry to bump an old thread but I just wanted to get some information regarding this. Im sure the answer will be helpful to some searching.

 

On what scale does adjusting the afm change engine function. Does tightening the dial say a 1/8 inch make the engine not even run or it hardly noticeable? Just wondering If I ever do this how much to start out doing.

 

start out by marking the starting position ;)

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  • 4 months later...
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What's the best way to get a stock AFM BACK to it's original settings?

 

Every single L28ET AFM I have (and/or have seen) has been opened and messed with. I have no way of knowing if the spring tension has been changed or by how much...

 

 

Witness mark the dial "before" you move it, so that after you do make adjustments you have a datum/reference point to go back to if things go hay wire such as loosing grip on the wheel and it freewheels loose or you just need to go back to OE settings for whatever reason. :wink:

 

Outside of that, best of luck, trial and error tuning... please.gif

Edited by BRAAP
Typo...
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That sucks...

 

I learned LONG ago to always mark original alignment before making any changes on stuff like this. Whoever broke open the AFM's we have obviously didn't know that rule...

 

My son's L28ET idles/accelerates/cruises the best (by "feel") - his engine really does run nice... And it has for the past 2 1/2 years since we did the swap. But I've been struggling with mine since May - It's close, it's still not "there".

 

I've been through everything else and I hoped there was a way to get the AFM "spring rate" back to factory settings. (then, if needed, to start making adjustments from there)

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  • 6 months later...

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