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Old 09-26-2015, 01:08 PM   #1
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Default Someone help me with AE

I made some adjustments on my fuel map (trying to get it a bit leaner, and a little more timing for gas mileage)

And no AE is being retarded. I messed around with it, but last time, I just got lucky with it. I just kept messing with it until it was just right, but now it's way out of whack.
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File Type: msq CurrentTune - Copy.msq (224.5 KB, 128 views)
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Old 09-26-2015, 06:25 PM   #2
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Your TPSdot threshold is way too low so Ae does things all the time.

You've got way too much added PW off AE alone, AE should not make the AFR spike leaner than the target AFR. For example, the first run hits 140% VE table, and the afr goes from 14.7 to 12.2 before coming back to 14.7, waste.
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Old 09-28-2015, 12:40 PM   #3
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Yeah, like I said, I for some reason can't grasp the concept of AE, so before I made the changes to the VE MAP, I was just playing around with it to get it right. I didn't care too much about it, but I wanted the car to just be smooth.
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Old 09-28-2015, 12:41 PM   #4
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Give this video a watch a few times until you understand it.

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Old 09-28-2015, 12:52 PM   #5
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tune VE, then tune AE.

AE is a very short momentary enrichment for very quick throttle changes. all it does is prevent lean tip-ins.
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Old 09-28-2015, 01:01 PM   #6
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Thank you for the video.
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Old 09-28-2015, 02:48 PM   #7
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So, is there a way turn off AE all together? I feel like my VE/AFR Tables were good, but always got lean tip in. So I started messing with AE, until I just got lucky (that I learned how to drive around it)

Forgive my noobness
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Old 09-28-2015, 02:51 PM   #8
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Set it all to zero.

But i wouldn't run without it, it's a good thing. You just have to know what you're doing.
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Old 09-28-2015, 03:00 PM   #9
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Quote:
Originally Posted by ihiryu View Post
So, is there a way turn off AE all together? I feel like my VE/AFR Tables were good, but always got lean tip in. So I started messing with AE, until I just got lucky (that I learned how to drive around it)

Forgive my noobness
Watch the goddamn video
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Old 09-28-2015, 03:31 PM   #10
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Quote:
Originally Posted by concealer404 View Post
Set it all to zero.

But i wouldn't run without it, it's a good thing. You just have to know what you're doing.
or just set the threshold higher than something that could get triggered...



this should seriously take you about 10 minutes to tune 80% of the way.

sit in your driveway with it idling.

set the threshold high enough that it won't trigger at idle, and high enough that it wont trigger when driving and maintaining throttle position/speed. A good number is maybe 20-30 %/sec rate above what you're getting at idle. The higher the threshold the less smooth the AE will work.

blip the throttle.

watch the dot move on your curve.

if you're lean when you blip, drag the dots higher, noting where the rate was when you blipped the throttle.

increase until you no longer spike lean or feel a delay/hesitation when you blip throttle, at various rates of throttle blips.

drive the car and see how shifts and engagement feels, it so feel very smooth on throttle now-- no hesitations.



congratulations, you've just tuned AE.



I find that blending in MAPdot helps with cold mornings, 100% TPS and I'd feel hesitation before the car warmed up if it was 40 degrees or below out. Also if you're using MS3, use accel-pump over AE, it's MUCH better code.
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Old 09-28-2015, 03:33 PM   #11
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Quote:
Originally Posted by Braineack View Post
or just set the threshold higher than something that could get triggered...

You mean how probably 90% of the people who have problems with AE have it set up?
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Old 09-28-2015, 03:47 PM   #12
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something like that.
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Old 09-28-2015, 05:21 PM   #13
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I am on MS3, I'll look into it both ways.
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Old 09-29-2015, 08:34 AM   #14
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if youre MS3 then use accel-pump.
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Old 09-29-2015, 01:57 PM   #15
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Okay, so after reading the description over and over in TS, I think I've gotten the gist of accel pump

So pretty much, the faster I stab the throttle, the more fuel I add, which is a percentage of my VE table. However, there needs to be an area with 0, pretty much when TPS is closed, there won't be any fuel added.

What I don't understand is (by looking at the default numbers, which I assume are generic numbers), is that on certain points of zero (I have three of them), they are negative numbers.
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Old 09-29-2015, 02:00 PM   #16
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Negative TPSdot is closing the throttle. Right now you are doing nothing. Some people pull fuel there. You can add negative percent if you want.

Also, TPS isn't "closed" it means its not moving, so constant throttle.
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Old 09-29-2015, 03:49 PM   #17
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That actually makes a lot of sense. So in essence, I could just add negative numbers here, and it'll lean out the AFR's a bit, without even having to mess with the VE table. But if that's the case, there may be some issues with cold starts, WUE etc, since this is only about the throttle staying still, right?
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Old 09-29-2015, 03:51 PM   #18
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No. You're still not getting it. AE is only active when the throttle is moving.

Log TPSdot and move the throttle around.
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Old 09-29-2015, 03:58 PM   #19
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Quote:
Originally Posted by ihiryu View Post
That actually makes a lot of sense. So in essence, I could just add negative numbers here, and it'll lean out the AFR's a bit, without even having to mess with the VE table. But if that's the case, there may be some issues with cold starts, WUE etc, since this is only about the throttle staying still, right?

No.

AE is ONLY active when the throttle is moving at a speed high enough to trigger it.

The values in your table are percentage of throttle change vs time. It has no effect on VE.
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Old 09-29-2015, 04:19 PM   #20
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I guess somebody had to get all "mathy".

TPSdot literally means "the rate of change of TPS (throttle pressure sensor) over time"

When nerds like me do mathy stuff, we write dots on top of variables to indicate that it is the time derivative (rate of change).

TL;DR your TPSdot will only have non-zero numbers if you are CHANGING throttle input. Which is why AE is useful for preventing going lean when you stab the throttle.
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