Fixing Jerky Throttle Response with ATR

[kalix]

Ok I have about 25 miles on the moddified map, so far my initial impression is that I like the urgency of the engine, I know it's not faster, but it feels faster and more "turbo" like. Which is good IMO, I know with the throttle fix, it made the car feel more N/A-like. But with this APP tuned, the car feels more ready to go. BTW, since the APP was changed, does this mean more load is being requested?

For anyone reading this that just started learning ATR: So far I've tuned only the Stg 1 +SF 91 OTS map and tuned the Throttle Request Load A & C. Tuned my MAF and now my APP. I LOVE ATR and my AP.

I'll try to post some logs soon!

[ToledoSpeed3]

Thanks for the feedback kalix, glad you like it. The only thing my APP Translation table tweaks really do is that now you don't have to push the pedal quite as far to request more load. You are still following the same "smoothed" load tables, but it now "feels" more peppy because not as much pedal is required to get it going off the line. If you look at the stock TRL tables compared to the ones in post 1, the stock table is a bit more agressive down low (more load is requested) up until a throttle position of ~43%. During light acceleration at partial throttle, the car feels more dead than stock when using the same amount of pedal. The APP changes I did are simply compensating for this. Some like the heavier pedal feel, but I wanted it to be a little less heavy. My wife used to have a Jetta 1.8t wagon and I loved how responsive that little engine felt off the line during casual driving. I wanted it to feel more like that. For me, these 2 changes make everyday driving more enjoyable.

[KayWhy]

With the new 1.07 i noticed that the abs load for a and c have changed where the max load is 1.99 Should i still follow the 2.50 scale as listed in the opp or drop it? The 1.07 maps are yet again jerky as hell

[aaronc7]

should be fine the way it's always done. once u get that high into load, you'd be in open loop anyway. this fix is more about fixing/changing throttle response in the closed loop/part throttle region

[KayWhy]

crap i just realized, the 09s change a and b. That means C is the ABS ? ? ? If that's the case why does normal A and C match and B is the odd one out?

[aaronc7]

we don't really know-limp mode?. but yes. its A and B for 09

[KayWhy]

Alright so change A and B got it. thanks for the help

[Ziggo]

I used Freefly's table and it worked out great, I think this should be done before you try to calibrate your MAF, it would have made getting a smooth MAF curve much easier

[Nliiitend1]

Originally Posted by FreeFlyFreak The best map I have tried and it is fantastic is a combo of my base map 91 Stage1+ with the following changes. The throttle smoothing posted by Aaronc7 from one of the Stage 2 maps in this thread. And the tweaks to Boost and throttle DBW tables posted by fjames here: http://www.mazdaspeedforums.org/foru...-response.html Post 1 Boost change, post 24 Throttle DBW change. I would recommend this combo of changes for anyone to try. It is my favorite map by far, it basically drives/responds like stock, but more powerful, and pulls all the way to redline. My thanks goes out to Aaronc7 and fjames for posting these tweaks.

It took me a while to come across/notice this post, but I put together a map like the one you describe here this past weekend (with, of course, a calibrated MAF curve - and also the "closed loop" fixes that have been posted elsewhere), and it's my new "favorite" as well.

I was previously using the aaronc7/dread (aaronc7's linear throttle changes + dreads app changes) combo, and the "new" combo is noticeably smoother at part throttle with less of a "dead/laggy" feeling immediately following shifts and without any noticeable loss in power.

I love it!

Kudos to all you guys that are putting in the work to find solid workable solutions to some the "persnickety" problems that plague the the OTS maps!

[SJP0tato]

I had skimmed this post in the past, but finally today got time to read & understand the whole thing. I've decided to try out a combo of aaronc7's TRL and ToledoSpeed3's settings:
aaronc TRL A/C:

0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
0.64	0.46	0.34	0.19	0.19	0.19	0.19	0.19	0.19	0.19	0.19	0.19	0.19	0.19	0.19
0.67	0.68	0.61	0.38	0.38	0.38	0.38	0.38	0.38	0.38	0.38	0.38	0.38	0.38	0.38
0.68	0.77	0.80	0.58	0.58	0.58	0.58	0.58	0.58	0.58	0.58	0.58	0.58	0.58	0.58
0.69	0.80	0.90	0.77	0.77	0.77	0.77	0.77	0.77	0.77	0.77	0.77	0.77	0.77	0.77
0.69	0.81	0.94	0.96	0.96	0.96	0.96	0.96	0.96	0.96	0.96	0.96	0.96	0.96	0.96
0.70	0.82	0.95	1.15	1.15	1.15	1.15	1.15	1.15	1.15	1.15	1.15	1.15	1.15	1.15
0.70	0.83	0.96	1.35	1.35	1.35	1.35	1.35	1.35	1.35	1.35	1.35	1.35	1.35	1.35
0.70	0.82	0.97	1.54	1.54	1.54	1.54	1.54	1.54	1.54	1.54	1.54	1.54	1.54	1.54
0.70	0.83	0.97	1.73	1.73	1.73	1.73	1.73	1.73	1.73	1.73	1.73	1.73	1.73	1.73
0.70	0.83	0.97	1.92	1.92	1.92	1.92	1.92	1.92	1.92	1.92	1.92	1.92	1.92	1.92
0.70	0.83	0.97	2.12	2.12	2.12	2.12	2.12	2.12	2.12	2.12	2.12	2.12	2.12	2.12
0.70	0.83	0.97	2.31	2.31	2.31	2.31	2.31	2.31	2.31	2.31	2.31	2.31	2.31	2.31
0.70	0.83	0.97	2.50	2.50	2.50	2.50	2.50	2.50	2.50	2.50	2.50	2.50	2.50	2.50
0.70	0.83	0.97	2.50	2.50	2.50	2.50	2.50	2.50	2.50	2.50	2.50	2.50	2.50	2.50
0.70	0.83	0.97	2.50	2.50	2.50	2.50	2.50	2.50	2.50	2.50	2.50	2.50	2.50	2.50
0.70	0.83	0.97	2.50	2.50	2.50	2.50	2.50	2.50	2.50	2.50	2.50	2.50	2.50	2.50

ToledoSpeed3 APP translation values:
1st gear:

0.00	0.27	0.69	1.80	3.48	4.81	6.42	8.03	9.63	11.24	12.84	14.44	16.50	18.37	20.47	22.50	27.50	30.98	34.98	38.16	41.34	43.46	46.01	48.15	50.29	52.43	54.57	56.71	60.99	77.04	100.00

2nd - 6th gears:

0.00	0.25	0.75	1.78	3.35	4.75	6.25	7.75	9.50	11.00	12.70	14.50	16.00	17.70	19.50	21.50	25.50	29.50	33.75	37.00	40.00	43.00	46.00	49.00	52.00	57.00	62.50	69.00	75.00	87.92	100.00

I'm going to try this out & report back. I wanted to consolidate everything in one post for anyone who wants to try it out without going through all the posts and having to mix & match to put it together.


Edit:
Well, this pretty much cleared up all my "issues" with the part throttle oddities I've had with the car since I bought it 8 months ago. I spent the first 2-3 months trying to figure out what the ecu was doing, because smooth up/down shifts were tough. This fixes the "bubble" as I thought of it, where about 20% into the throttle suddenly there's a bubble of power, and you have to just nudge into it for part throttle operation.

I'm going to guess this would help with gas mileage too, I often would see 95-99% wastegate duty cycle at 18-25% throttle which is ridiculous IMHO. Now the car properly responds as all the cable driven throttles I've driven over the past 15 years. It's actually possible to drive under the spool of the turbo now, I'm guessing the aim of the stock tables was to keep the turbo spooled under almost all conditions for lag/response issues most people that have never driven a turbo'd car might have.

The only downside is I have to un-learn the odd stock behavior, and get re-accustomed to proper throttle response.

Thanks guys!

[rorys speed]

Ok.. I just want to give respect to all of the guys who are trying to make the MS3 better, because it seems everyday someone is adding to the list of things that can be done to our cars to make them perform better in someway. My question is, I wanted to see if someone could send me a really good map to try out. I am not the best when it comes to changing #'s on the AP. This is my daily driver and with 2 kids and a mortgage keeping my car drivable is important in my wife's eyes lol. I have done a bit to the car, Upgraded TMIC, cobb SRI, Catless TB exhaust, rear motor mount, tranny mount, up graded fuel internals, cobb TIP and turbo smart BPV (and obviously the AP). I live in VA so I have been using the 93 oct TMIC SRI map. Any help or recommendations would be awesome! Thanks!

[Nliiitend1]

Start reading.

HOW TO CALIBRATE YOUR MAF! With An Example

Got the Cobb AP

http://www.mazdaspeedforums.org/foru...l-stuff-68239/

...and much much more.

[Z3roFlaw]

Originally Posted by SJP0tato I had skimmed this post in the past, but finally today got time to read & understand the whole thing. I've decided to try out a combo of aaronc7's TRL and ToledoSpeed3's settings: aaronc TRL A/C: 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.64 0.46 0.34 0.19 0.19 0.19 0.19 0.19 0.19 0.19 0.19 0.19 0.19 0.19 0.19 0.67 0.68 0.61 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.68 0.77 0.80 0.58 0.58 0.58 0.58 0.58 0.58 0.58 0.58 0.58 0.58 0.58 0.58 0.69 0.80 0.90 0.77 0.77 0.77 0.77 0.77 0.77 0.77 0.77 0.77 0.77 0.77 0.77 0.69 0.81 0.94 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.70 0.82 0.95 1.15 1.15 1.15 1.15 1.15 1.15 1.15 1.15 1.15 1.15 1.15 1.15 0.70 0.83 0.96 1.35 1.35 1.35 1.35 1.35 1.35 1.35 1.35 1.35 1.35 1.35 1.35 0.70 0.82 0.97 1.54 1.54 1.54 1.54 1.54 1.54 1.54 1.54 1.54 1.54 1.54 1.54 0.70 0.83 0.97 1.73 1.73 1.73 1.73 1.73 1.73 1.73 1.73 1.73 1.73 1.73 1.73 0.70 0.83 0.97 1.92 1.92 1.92 1.92 1.92 1.92 1.92 1.92 1.92 1.92 1.92 1.92 0.70 0.83 0.97 2.12 2.12 2.12 2.12 2.12 2.12 2.12 2.12 2.12 2.12 2.12 2.12 0.70 0.83 0.97 2.31 2.31 2.31 2.31 2.31 2.31 2.31 2.31 2.31 2.31 2.31 2.31 0.70 0.83 0.97 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 0.70 0.83 0.97 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 0.70 0.83 0.97 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 0.70 0.83 0.97 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 ToledoSpeed3 APP translation values: 1st gear: 0.00 0.27 0.69 1.80 3.48 4.81 6.42 8.03 9.63 11.24 12.84 14.44 16.50 18.37 20.47 22.50 27.50 30.98 34.98 38.16 41.34 43.46 46.01 48.15 50.29 52.43 54.57 56.71 60.99 77.04 100.00 2nd - 6th gears: 0.00 0.25 0.75 1.78 3.35 4.75 6.25 7.75 9.50 11.00 12.70 14.50 16.00 17.70 19.50 21.50 25.50 29.50 33.75 37.00 40.00 43.00 46.00 49.00 52.00 57.00 62.50 69.00 75.00 87.92 100.00 I'm going to try this out & report back. I wanted to consolidate everything in one post for anyone who wants to try it out without going through all the posts and having to mix & match to put it together. Edit: Well, this pretty much cleared up all my "issues" with the part throttle oddities I've had with the car since I bought it 8 months ago. I spent the first 2-3 months trying to figure out what the ecu was doing, because smooth up/down shifts were tough. This fixes the "bubble" as I thought of it, where about 20% into the throttle suddenly there's a bubble of power, and you have to just nudge into it for part throttle operation. I'm going to guess this would help with gas mileage too, I often would see 95-99% wastegate duty cycle at 18-25% throttle which is ridiculous IMHO. Now the car properly responds as all the cable driven throttles I've driven over the past 15 years. It's actually possible to drive under the spool of the turbo now, I'm guessing the aim of the stock tables was to keep the turbo spooled under almost all conditions for lag/response issues most people that have never driven a turbo'd car might have. The only downside is I have to un-learn the odd stock behavior, and get re-accustomed to proper throttle response. Thanks guys!

Thanks for consolidating this info into one post! I was also suffering from a jerky throttle response, but after changing the TRL and APP tables with the values listed above, that has all been cleared up and the throttle response is much more evenly spread out amongst the RPM band. Thank you all for the awesome sticky!

[friscoplayrsf]

Worked well for me too. Just need to tune my load to hit boost targets now.

[super_pablo_]

^^or just do some boost based tuning

[friscoplayrsf]

Can we use these throttle tables with boost based tuning

[Z3roFlaw]

Originally Posted by friscoplayrsf Can we use these throttle tables with boost based tuning

That is actually a good question. I recently switched maps to a beta BT map.

Another question. Does the TRL and APP adjustments carry over between flashes? I adjusted these tables when running a stage 1 tune, saved the changes and reflashed. After ow loading COBBs beta BT tune, I opened it up in ATR to just take a peek at various settings and I noticed that the BT tune map didn't make any changes to the TRL and APP tables. I thought that changing these tables to a map made them specific to that map. Am I wrong or even possibly seeing things lol!?

[R.MS3]

Originally Posted by Z3roFlaw That is actually a good question. I recently switched maps to a beta BT map. Another question. Does the TRL and APP adjustments carry over between flashes? I adjusted these tables when running a stage 1 tune, saved the changes and reflashed. After ow loading COBBs beta BT tune, I opened it up in ATR to just take a peek at various settings and I noticed that the BT tune map didn't make any changes to the TRL and APP tables. I thought that changing these tables to a map made them specific to that map. Am I wrong or even possibly seeing things lol!?

What? Each map is its OWN file, so if you flash another map how do you expect to carry the changes you did to ANOTHER map?

Back when i was tuning the changes made to the TRL A/C tables DID have an impact on throttle response. Just put the "combo" you like the best in there, along with any APP changes, and you should feel the change.

The reason it still works is because it changes the lower load levels of that table, so the ECU still targets them. Most of the changes on a boost-based map are on the upper levels of load.

[kunfu]

Originally Posted by friscoplayrsf Can we use these throttle tables with boost based tuning

So whats the consensus on this? Are these fixes helpful and suitable with newest boost based maps?

[Enki]

At this moment, I use the following for all gears and neutral, and it seems to make drivability much nicer (even with OTS DBW Throttle tables):

0.00	0.25	0.50	1.50	3.00	4.50	6.00	7.00	8.00	9.00	10.00	11.00	12.00	13.00	14.00	15.00	20.00	25.00	30.00	35.00	40.00	45.00	50.00	57.50	65.00	75.00	84.00	87.50	90.00	95.00	100.00

It's basically a three stage mapping with a desensitized low end, aggressive mid end and less aggressive top end. I find it very easy to blip the throttle for rev matching when coming down in gears at lower RPMs.

[jamesr242]

Does anybody know how to fix this with a boost based tune (I'm Gen 2)? I'm using the Stage 2 CPE CAI, IC, TIH map and it has essentially the same table posted here. I am really not liking the part throttle response. For example, I'll be boosting part throttle at 3 psi and move the pedal a millimeter and it jumps to 8 psi. For a DD, I would like more controllable boost. Any ideas?

[rfinkle2]

Originally Posted by jamesr242 Does anybody know how to fix this with a boost based tune (I'm Gen 2)? I'm using the Stage 2 CPE CAI, IC, TIH map and it has essentially the same table posted here. I am really not liking the part throttle response. For example, I'll be boosting part throttle at 3 psi and move the pedal a millimeter and it jumps to 8 psi. For a DD, I would like more controllable boost. Any ideas?

Do you have a copy of Access Tuner Race?

Are you thinking of getting a custom tune, or going to modify your map yourself?

Either way, you can request a copy of ATR here... You will need it regardless of whether or not you make adjustments yourself, or have a custom tune made for you.

Cobb Tuning

[jamesr242]

Originally Posted by rfinkle2 Do you have a copy of Access Tuner Race? Are you thinking of getting a custom tune, or going to modify your map yourself? Either way, you can request a copy of ATR here... You will need it regardless of whether or not you make adjustments yourself, or have a custom tune made for you. Cobb Tuning

Thanks for the response. I have ATR. I'm not really sure if I am going to get a custom tune. I'm not trying to squeeze every last HP out of this engine so I might be satisfied with the OTS provided I can get rid of the jerkyness. I am hoping this is a somewhat easy fix that I can do myself because I have little ATR skills. If it involves changing lots of parameters then I will probably go with an e-tune to get smoothness and some more powah

[rfinkle2]

Originally Posted by jamesr242 Thanks for the response. I have ATR. I'm not really sure if I am going to get a custom tune. I'm not trying to squeeze every last HP out of this engine so I might be satisfied with the OTS provided I can get rid of the jerkyness. I am hoping this is a somewhat easy fix that I can do myself because I have little ATR skills. If it involves changing lots of parameters then I will probably go with an e-tune to get smoothness and some more powah

Without sacrificing reliability, one of the "teams" would be able to get you quite a few more hp and tq, and cater to your specific driving habits.

It seems all of the "teams" are really helpful, and will listen to how you want your car set-up from cruising around town to wot.

That being said, I think the table that will help your jerkiness is an easy temporary fix.

By jerkiness, you feel there is a very small amount of pedal modulation needed to induce a lot of boost (I saw your 2psi to 8psi post)?

If you can post a screenshot of the wgdc table in your map, I can suggest some tweaks that may help.

[jamesr242]

Originally Posted by rfinkle2 By jerkiness, you feel there is a very small amount of pedal modulation needed to induce a lot of boost (I saw your 2psi to 8psi post)? If you can post a screenshot of the wgdc table in your map, I can suggest some tweaks that may help.

This is exactly what I mean; a little pedal movement equals lots more boost. Basically it's not very linear and hard to control precisely. This map is the unmodified Stage 2 CPE CAI, IC, TIH map (with one round of MAF cal). What you think of this? The graph looks crazy, lol

[rfinkle2]

Originally Posted by jamesr242 This is exactly what I mean; a little pedal movement equals lots more boost. Basically it's not very linear and hard to control precisely. This map is the unmodified Stage 2 CPE CAI, IC, TIH map (with one round of MAF cal). What you think of this? The graph looks crazy, lol

Give this a try:

-populate the 50% throttle position with a value of 5 (5's in each column) from 2500 rpm to redline. (note: this will include making above 50% throttle position 0 in the 5000 rpm to redline 0).
-highlight from 75% throttle position up to the 50% throttle position (again from 2500 - redline) and once highlighted, press "v".

Resave the map, flash it and lmk how the throttle feels.

EDIT: Note: also changed 120 values to 100 for consistency

[Enki]

This issue can also be caused by an improper MAF calibration (like for E85 mixes and/or boost/vac leaks) skewing the load values.

[jamesr242]

Thanks, I loaded up that table. Just gotta break the map in a little before I can test it out.

[jamesr242]

The boost definitely comes on smoother with this table, thanks. I'm wondering though if that WGDC can't be spread across the lower APP's. I find it somewhat annoying that you don't really get any boost until you hit 50% APP. Could I spread that out to 31 APP or maybe 37 to make it more controllable? Would I have to start changing my boost targets at that point?

[rfinkle2]

Originally Posted by jamesr242 The boost definitely comes on smoother with this table, thanks. I'm wondering though if that WGDC can't be spread across the lower APP's. I find it somewhat annoying that you don't really get any boost until you hit 50% APP. Could I spread that out to 31 APP or maybe 37 to make it more controllable? Would I have to start changing my boost targets at that point?

You could definitely spread the table up some. You would use the same logic, move the 5 up by a few rows, vertically interpolate from the 75% throttle position and see how it goes.

I don't like a lot of part throttle boost, but some guys do.

That is the beauty of ATR... customizing the way your car drives the way you'd like it to.

Keep an eye on the boost targets table as well, because it is set to achieve positive gauge pressure @ the 50% APP position...

[jwright32]

I am trying to work on smoothing out some jerkiness in my OTS cp-n stage 1 (91) map. Seems other have had some luck with this by smoothing the app translation values for each gear. My question is, how do you get that many cells. Looking at my map on atr, i only count 20 cells for each gear. Toledospeed3's setting include 31 numbers, What am i missing on how to be able to input that many variables, or is this something that has changed in the program since this was posted?

Originally Posted by SJP0tato I had skimmed this post in the past, but finally today got time to read & understand the whole thing. I've decided to try out a combo of aaronc7's TRL and ToledoSpeed3's settings: aaronc TRL A/C: 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.64 0.46 0.34 0.19 0.19 0.19 0.19 0.19 0.19 0.19 0.19 0.19 0.19 0.19 0.19 0.67 0.68 0.61 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.68 0.77 0.80 0.58 0.58 0.58 0.58 0.58 0.58 0.58 0.58 0.58 0.58 0.58 0.58 0.69 0.80 0.90 0.77 0.77 0.77 0.77 0.77 0.77 0.77 0.77 0.77 0.77 0.77 0.77 0.69 0.81 0.94 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.70 0.82 0.95 1.15 1.15 1.15 1.15 1.15 1.15 1.15 1.15 1.15 1.15 1.15 1.15 0.70 0.83 0.96 1.35 1.35 1.35 1.35 1.35 1.35 1.35 1.35 1.35 1.35 1.35 1.35 0.70 0.82 0.97 1.54 1.54 1.54 1.54 1.54 1.54 1.54 1.54 1.54 1.54 1.54 1.54 0.70 0.83 0.97 1.73 1.73 1.73 1.73 1.73 1.73 1.73 1.73 1.73 1.73 1.73 1.73 0.70 0.83 0.97 1.92 1.92 1.92 1.92 1.92 1.92 1.92 1.92 1.92 1.92 1.92 1.92 0.70 0.83 0.97 2.12 2.12 2.12 2.12 2.12 2.12 2.12 2.12 2.12 2.12 2.12 2.12 0.70 0.83 0.97 2.31 2.31 2.31 2.31 2.31 2.31 2.31 2.31 2.31 2.31 2.31 2.31 0.70 0.83 0.97 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 0.70 0.83 0.97 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 0.70 0.83 0.97 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 0.70 0.83 0.97 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 ToledoSpeed3 APP translation values: 1st gear: 0.00 0.27 0.69 1.80 3.48 4.81 6.42 8.03 9.63 11.24 12.84 14.44 16.50 18.37 20.47 22.50 27.50 30.98 34.98 38.16 41.34 43.46 46.01 48.15 50.29 52.43 54.57 56.71 60.99 77.04 100.00 2nd - 6th gears: 0.00 0.25 0.75 1.78 3.35 4.75 6.25 7.75 9.50 11.00 12.70 14.50 16.00 17.70 19.50 21.50 25.50 29.50 33.75 37.00 40.00 43.00 46.00 49.00 52.00 57.00 62.50 69.00 75.00 87.92 100.00 I'm going to try this out & report back. I wanted to consolidate everything in one post for anyone who wants to try it out without going through all the posts and having to mix & match to put it together. Edit: Well, this pretty much cleared up all my "issues" with the part throttle oddities I've had with the car since I bought it 8 months ago. I spent the first 2-3 months trying to figure out what the ecu was doing, because smooth up/down shifts were tough. This fixes the "bubble" as I thought of it, where about 20% into the throttle suddenly there's a bubble of power, and you have to just nudge into it for part throttle operation. I'm going to guess this would help with gas mileage too, I often would see 95-99% wastegate duty cycle at 18-25% throttle which is ridiculous IMHO. Now the car properly responds as all the cable driven throttles I've driven over the past 15 years. It's actually possible to drive under the spool of the turbo now, I'm guessing the aim of the stock tables was to keep the turbo spooled under almost all conditions for lag/response issues most people that have never driven a turbo'd car might have. The only downside is I have to un-learn the odd stock behavior, and get re-accustomed to proper throttle response. Thanks guys!