This thread is now “Stickied”

 

Awesome, thank you!

Just wanted to say that the throttle calibration was super easy to do, requires no tools and one does the calibration from the comfort of the cabin, in the driver's seat. So no one should feel intimidated by the term "Throttle Calibration"! One needs not be technically inclined, and all we're really doing is showing the computer how we each individually interact with that gas pedal via our foot.

I recommend this to all new Gen 6 OB owners, and anyone who's disconnected their battery, as it has to be done again, same as one's radio presets/seat pre-sets are lost and must be re-entered after battery disconnection/replacement.

 

Is this documented anywhere by SOA? Just out of curiosity.

Going to try this on my Ascent this week since I am no fan of the default throttle mapping.

 

Cool, I recommend taking a note pad and pen to keep track of the 30 sets of pedal press/pedal release you'll do. I tried without the 1st time and had to scrap that try half way thru when I lost count. Also a cold beverage doesn't hurt.

Hope you see a pleasant improvement.

 

Cobb has a shorter version of resetting a throttle after changing a battery but this one came from Subaru forums in Japan via our forum member @yoyash in a thread where we were talking about poor throttle response. In the Japanese forums it's called "pekopeko" for some reason. There are some variations in the procedure but the PDF is based on trying it on our USDM Gen 6 cars in a way that worked, step by step, and it's supposed to work on all drive-by-wire Subarus (electronic throttle control, not throttle cable) and was not intended to be something unique to the direct injection engines or anything. Here in the forums people with the turbo and with the naturally aspirated 2.5 have all reported good results with it when followed carefully. It's not in any official Subaru documentation that I'm aware of - not sure how the Japan Subaru forums found it.

Here's the original source: アクセルペコペコ スバルに関する情報まとめ - みんカラ

Let us know if it works on the Ascent.

 

Cobb has a shorter version of resetting a throttle after changing a battery but this one came from Subaru forums in Japan via our forum member @yoyash in a thread where we were talking about poor throttle response. In the Japanese forums it's called "pekopeko" for some reason. There are some variations in the procedure but the PDF is based on trying it on our USDM Gen 6 cars in a way that worked, step by step, and it's supposed to work on all drive-by-wire Subarus (electronic throttle control, not throttle cable) and was not intended to be something unique to the direct injection engines or anything. Here in the forums people with the turbo and with the naturally aspirated 2.5 have all reported good results with it when followed carefully. It's not in any official Subaru documentation that I'm aware of - not sure how the Japan Subaru forums found it.

Here's the original source: アクセルペコペコ スバルに関する情報まとめ - みんカラ

Let us know if it works on the Ascent.

Thanks for the additional context. I will report back!

 

I saw the previous thread and always thought about doing this, but... somehow never got around to it. Finally went ahead and I have to say that I think it made a nice difference. Not drastic for me, but nice! Thanks!

 

Does it give you any sort of confirmation that you’ve done it successfully?

 

Only the confirmation of any difference you feel while driving (lol, aka nope).

 

So is it 31 times total when you include the first down-up sequence? Or is it meant o be 30 total?

 

I had the same question & ended up doing 31 & it worked perfectly.

 

Same, I did 31 in total.

 

I believe it requires 30 times minimum for it to count, and that going over 30 is either further learning for the cpu or it stops 'recording' the inputs. Either way less than 30 will likely not work at all, while a few over doesn't seem to effect results.

One thing I'd note is if one doesn't follow the steps properly, including the last bits about exiting and staying away from the car with the fob, it won't take, and there will be no noticeable change.

Also, the car learns this over time on it's own, so it's less likely to have a noticeable impact on a car that's already spent 10k learning one's foot. I think this is going to have a clearer impact on new OBs that haven't had time and miles to learn the driver's foot action yet.

Lastly, if you are doing this on a new OB, and you don't notice a change at all, I'd recommend a redo and take greater care to be sure the steps were followed to the letter. I worked IT tech support for several years and human error is a common saboteur when you get into a process with more then a few steps.

Good luck!

 

Much appreciated for the post, I tried in on 2020 2.5 and I could not tell a difference after.

 

While in Arizona last month during our cross-country trip, the throttle response got really delayed. I redid the throttle calibration but it didn't help. As we headed back east, I could feel a noticeable improvement with a much better response. I guess the high altitude really exacerbates the delay.

 

I did the procedure on my 2022 Touring XT and didn't notice a change.

 

Same


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I think if your throttle is normal/good it should make no difference. If yours is acting strange it may help.

 

I was reluctant to even try it after hearing others say they didn't notice a change. Having some free time I tried it just today. Huge improvement for me. I was fine how it was b4 and got use to it. Around town it's at least twice as smooth. By far the best thing I have done. Downloaded pdf on my phone and may have done over 30 presses just to make sure I didn't stop short. Can't wait until I can drive around some more. Night driving is risky, just last night watched 5 deer run across a street inside the city limits.

 

I just performed this on my OBW. I will say that the throttle is much more responsive which, in turn, the turbo is more responsive . Well worth the 10 minutes of my time.

 

I did this over the weekend, and am surprised at the result.

First, I only went through all the steps once and wasn’t sure if I did it properly. I don’t know if it’s in the instructions but what I don’t like about this process is that there’s no confirmation if you’ve performed the steps correctly to let you know if it “took.”

After, I had a short drive home and was consciously trying to determine if I could feel a difference or not. On side roads it seemed better, but when I got on the highway I couldn’t tell.

I’ve since driven it for a couple days on my typical routes, and am taking the “placebo effect” approach…doubt before belief. The thing is, for as much as I was trying to convince myself otherwise I think this has made an improvement. I’m in a naturally aspirated CVT car so to ever call the throttle “responsive” would be a lie, but it is smoother and more enjoyable to drive.

If you don’t like how your car is now, you owe it to yourself to try this. It’s free and does no harm, so why not?

 

I performed the calibration earlier today and I’m really impressed with the results.

I’ll admit I wasn’t really bothered by how the throttle behaved previously, but I also can’t say I was impressed by it either. I saw the post last night and decided to give it a shot this morning.

The response is similar to that of a sportier car and improves a lot on the “rubber band” effect that CVTs naturally display.

My only worry now is that my MPGs start dropping as result of me mashing the gas pedal [emoji23]

Thanks a lot OP!

 

Curious as to whether this procedure applies to Gen 5 models.
Though I give the whole rigmarole the side eye. LOL

 

The procedure was developed long before Gen 6 Outbacks were around - it's from the beginning of Subaru's switch to drive-by-wire, so it's supposed to work with all drive-by-wire Subarus. Again if your throttle is fine it may not make much improvement. Try it and let us know.

 

I used this a couple days ago, extremely helpful. I made a bone-head mistake while trying to hurry (don't!) and found my vehicle inoperable. Thanks to this thread I was able to order the fusible link for about $6. After getting it back to working order the car did not feel right. The CVT felt unsure and the engine almost felt choked. Really happy to stumble across this sticky.

Really helpful to know this 5 minute procedure will retain my natural driving characteristics each time the battery needs to be (safely!) disconnected.

 

feel like my throttle has been sticky lately. just did this today

 

It only started somewhat recently, maybe after my tire swap. There had been several instances where I would see the car downshift ~2-3k rpms as I would slow down to a red light, and if it changed to green as i was slowing down I'd give it gas. The car would then lag with no adjustments to gas, I'd give it a bit more gas and then all of a sudden the car would jump up to 5-6k rpm and start pulling unnecessarily despite foot being off gas or in some instance i was just there for the acceleration and had to immediately hop on the brakes.

tldr; the throttle calibration worked for me

 

I will give this a try next week. I took the subi to a local dealership and they refused to do the throttle recalibration.

 

Knowing dealerships it's very likely they had no idea how to do it. The senior master technion never heard of key theft protection and needing a pin code to start the car and told me subarus have no such thing until I showed them the alarm immobiliser manual and the number of tech support to guide them through it.

 

I gave this a shot today and it seems to have helped a bit. Have only taken it on a 5 minute spin since calibration though. Will keep testing to see if it's placebo effect or actually better/more linear.

 

Had a chance to go for a drive last night and early this morning. Definitely noticing some improvement. Not night and day but throttle application is certainly more linear and in line with how I expect the go-pedal to respond.

 

I am looking forward to giving this a try. Hopefully it will solve the laggy response that I am having.