Different AFM question

[Revo1]

Don't incinerate me, I know there are alot of threads on this topic already, but I have a specific query that I haven't been able to get an answer to posting in other threads, so here it is.



Is it possible, or has anyone tuned DOWN their AFM?

Not tune it completely out, just tune it down- so that it only comes on at highway speeds, or only in 6th gear or something? I definitely don't want it coming on at inconvenient times (while under light load on the street, etc) but would still like to achieve the mileage on the highway, being that we often travel between Fresno and Bakersfield, and the car will be seeing some highway miles.

Just want the AFM to come on when the motor is under light load, at a speed above 60ish...

So, anyone? Can it be done?...

[SScattergunSS]

I'll give this a bump for you. I don't know the answer, but I will tell you that even driving at 40mph in town, the transmission is in 6th gear when I go to use my TAP shift!

[Revo1]

Originally Posted by SScattergunSS

I'll give this a bump for you. I don't know the answer, but I will tell you that even driving at 40mph in town, the transmission is in 6th gear when I go to use my TAP shift!

SERIOUSLY??? Thanks Ed, that does come as a surprise... (insert worried smiley here)

[SScattergunSS]

Originally Posted by Revo1

SERIOUSLY??? Thanks Ed, that does come as a surprise... (insert worried smiley here)

Yeah, I noticed it the other day on Blackstone when I went to use the TAP Shift.

Having said that, a little later on that drive, I was in using the buttons and in 3rd, when I needed to go around some one Driving While (you fill in the blank) and it scared me a little how responsive, instantaneous, and powerful it was!

[3BVert]

When I bought my Predator, my understanding (might be wrong) was that you could set limits on when AFM kicks in. I don't know because I didn't even try. I wanted it GONE! If the Predator won't do it, I'm almost certain that there are handhelds that will. Even if you do, I imagine that you still run the risk of warranty issues because you've modified the ECM whether you turn it off or down.

Personally, I see the same mileage with the Predator tune and AFM off as I did with the stock tune and AFM on. However, I don't do a lot of straight highway driving so maybe that's where AFM shines (there has to be a silver lining to AFM somewhere!).

IMO... If you're not worried about potential warranty issues, just turn the annoying thing off. You won't regret it.

[Revo1]

Originally Posted by SScattergunSS

Yeah, I noticed it the other day on Blackstone when I went to use the TAP Shift.

Having said that, a little later on that drive, I was in using the buttons and in 3rd, when I needed to go around some one Driving While (you fill in the blank) and it scared me a little how responsive, instantaneous, and powerful it was!

Lol sounds all good to me!

Originally Posted by 3BVert

When I bought my Predator, my understanding (might be wrong) was that you could set limits on when AFM kicks in. I don't know because I didn't even try. I wanted it GONE! If the Predator won't do it, I'm almost certain that there are handhelds that will. Even if you do, I imagine that you still run the risk of warranty issues because you've modified the ECM whether you turn it off or down.

Personally, I see the same mileage with the Predator tune and AFM off as I did with the stock tune and AFM on. However, I don't do a lot of straight highway driving so maybe that's where AFM shines (there has to be a silver lining to AFM somewhere!).

IMO... If you're not worried about potential warranty issues, just turn the annoying thing off. You won't regret it.

Well that's reassuring!

I'm not too worried about the warranty, main thing is I want to be able to get the most out of my car when that time comes.... The Predator and other such programmers save your factory settings in case you want to revert to them right? (For warranty purposes)

[hypurone]

The majority of guys that have tuned the AFM completely out are reporting a max change of 1-2 mpg reduction. Not even close to worrying about in my book.

Also, I just had a lengthy conversation with my soon-to-be tuner and he said the tables for the AFM are huge and very difficult to tune outside of some very narrow parameters and he even recommended just turning it off.

I personally did not buy the car for mpg so will be turning it off when the SC goes on!

YRMV

[jbsrace1]

Yes it can be set to only come on above a certain speed like 55mph or what ever you want. I do not know about with hand held tuners but with tunning software it is easy to make it do what you want.

Also, I just had a lengthy conversation with my soon-to-be tuner and he said the tables for the AFM are huge and very difficult to tune outside of some very narrow parameters and he even recommended just turning it off.

They are not that huge or hard to work with.

[Revo1]

Originally Posted by jbsrace1

Yes it can be set to only come on above a certain speed like 55mph or what ever you want. I do not know about with hand held tuners but with tunning software it is easy to make it do what you want.



They are not that huge or hard to work with.

Tuning software? I assume this is something I'd have to have done at a shop correct? This is no problem, just tryin to figure out what I'm looking at here...

Originally Posted by hypurone

The majority of guys that have tuned the AFM completely out are reporting a max change of 1-2 mpg reduction. Not even close to worrying about in my book.

Also, I just had a lengthy conversation with my soon-to-be tuner and he said the tables for the AFM are huge and very difficult to tune outside of some very narrow parameters and he even recommended just turning it off.

I personally did not buy the car for mpg so will be turning it off when the SC goes on!

YRMV

Neither am I. I did explain this post right? Thought that would alleviate some of the "It's a musclecar, who cares about economy" stuff... Guess not.

Anyway, explain 'tables'? I'm not familiar with the term.

[SGOS252382]

Some posted how they had their car set so that the AFM only came on in 5th and 6th gear at certain speeds and only in D (drive).

But AFM can be very annoying on the highway in 6th gear while cruising. When you gently get on and off the gas to maintain a constant speed, AFM kicks in and makes a weird noise (drone like and didn't sound good on my car).
I was so happy after I got my AFM deleted. Your exhaust always sounds good after you get the AFM deleted.

[Revo1]

Originally Posted by SGOS252382

Some posted how they had their car set so that the AFM only came on in 5th and 6th gear at certain speeds and only in D (drive).

But AFM can be very annoying on the highway in 6th gear while cruising. When you gently get on and off the gas to maintain a constant speed, AFM kicks in and makes a weird noise (drone like and didn't sound good on my car).
I was so happy after I got my AFM deleted. Your exhaust always sounds good after you get the AFM deleted.

It seems like the sound of it must be pretty awful... It may be necessary to tune it out completely in the the end, but would like to try and find a balance if I can.

Is it pretty feasible to buy a reprogrammer, use it to tune the AFM down, and then if it's still killin my ears, then just tune it completely out?

[jbsrace1]

Here is a screen shot from HP Tuners
Setting Min VSS to 55 will keep it from activating bellow 55

[Revo1]

Originally Posted by jbsrace1

Here is a screen shot from HP Tuners
Setting Min VSS to 55 will keep it from activating bellow 55

WOW. And you did this at home??

[jbsrace1]

Originally Posted by Revo1

WOW. And you did this at home??

Actually I am at work rite now.
I own a automotive repair shop.