034 Tune Help

[2BLKDSM]

Hey All,

I have the stage 1 ECU and TCU 034 tune on my 8.5 S4. When I'm on the highway and give enough gas to down shift, it down shifts to a very low gear and puts me in the 7000-8000rpm range immediately, maybe 7200-7400rpm. When it happens I'm more worried about not damaging my car and shifting up to know exactly, but point being it down shift directly to red line.

Anyone else with these tunes that have this behavior? I'm not getting any help through there support.

Thanks for any help

[deejayh]

i am on e40 034 in my 6mt b8 s4, so can't speak to the TCU tune, but if you're hammering down on the pedal, it should downshift to the lowest gear possible. If you depress throttle 50% of the travel, you'll probably get a more modest downshift.

This is how my rs5 behaves on 034 TCU stage 2 w/ e84 stage 1+ ecu. If i hammer the pedal down on the freeway, it will shift as low as possible. If I feather it down, it'll downshift 1 gear.

[2BLKDSM]

Thanks for your reply brother. I'm not hammering but just just trying to trigger a downshift, so like 50%. In fact I havent even gone WOT in the entire past year.

I suppose it does go down in gears as far as possible, but theres no rpms left, Im already at red line. It doesnt seem right to me, but maybe its the way it is.

I think I have to remember to use the paddles for down shifting or just remove the TCU tune. I'll probably just do the ladder as my car has 134k now.

Thanks again for your insight

[SwankPeRFection]

Don’t press the pedal all the way down to where you’re also triggering the kickdown button under the pedal. It’s that last little bit where you can feel a click, almost right before all the way to the floor. If you only press down without triggering the kickdown it’ll still downshift, but not to the lowest gear possible, just usually one above lowest possible.

[SwankPeRFection]

I wouldn’t go back to the stock Audi TCU calibration because it’s shit. With that many miles you’re actually asking for issues doing that. Stay with the TCU tune, just learn to drive. If you keep the engine/trans in Auto and your other settings in Dynamic (if you want that) it should keep the tranny from being too adressive with its shifting logic. They should have left Comfort and Auto alone for the trans and only modded the shifting logic for the Dynamic option… at least this is how everyone else has done it and it was the correct way.

[034Motorsport]

Hey All,

I have the stage 1 ECU and TCU 034 tune on my 8.5 S4. When I'm on the highway and give enough gas to down shift, it down shifts to a very low gear and puts me in the 7000-8000rpm range immediately, maybe 7200-7400rpm. When it happens I'm more worried about not damaging my car and shifting up to know exactly, but point being it down shift directly to red line.

Anyone else with these tunes that have this behavior? I'm not getting any help through there support.

Thanks for any help

It sounds like you're pushing the pedal down quite far to have it downshift to that low of a gear. Typically a small pedal push should only be 1-2 gears, depending on what RPM you started at, but it's all relative.

Shoot us an email at [email protected] and we can rule out any other variables and ensure your car is running properly. Feel free to PM me your email address and I can escalate it with the team

-Sean@034

[SwankPeRFection]

Lol, the man just told you in the OP he’s not getting reliable support via your email channels and you’re directing him to do so. 🤣 I love it. You guys really need to learn to use a phone and speak to your customers.

[Nillious]

I have the same tunes and same car. I I have not noticed this. I did notice what you’re saying on my wife’s gli with a unitronic tune. It would downshift to a gear that put it immediately at the shift point. So it would kick down and then immediately shift up. Sounds like this is what you are describing

What tcu tune are you on? There are different options for shift points. Sounds like you may have selected the one with higher shift points. One says shift points up to 7400 or 7500. You want to be on the one with the flat 7200 across all shifts. Double check what tune you loaded on the tcu.

[2BLKDSM]

I have the same tunes and same car. I I have not noticed this. I did notice what you’re saying on my wife’s gli with a unitronic tune. It would downshift to a gear that put it immediately at the shift point. So it would kick down and then immediately shift up. Sounds like this is what you are describing

What tcu tune are you on? There are different options for shift points. Sounds like you may have selected the one with higher shift points. One says shift points up to 7400 or 7500. You want to be on the one with the flat 7200 across all shifts. Double check what tune you loaded on the tcu.

This is exactly what I'm talking about and you're right, I noticed the ECU and the TCU tune say different RPMs. I'll load up the app and see if there are different options.

[Nillious]

The ecu rpm is your rev limit. The tcu lists the shift points. The rev limit has to be higher than the shift point. I feel like one of the tcu tune options have a shift point at 7400 though which could cause some problems. Just make sure you’re on the one that says 7200 only.

[Nillious]

Btw your thumbnail isn’t showing up for me.

[2BLKDSM]

The ecu rpm is your rev limit. The tcu lists the shift points. The rev limit has to be higher than the shift point. I feel like one of the tcu tune options have a shift point at 7400 though which could cause some problems. Just make sure you’re on the one that says 7200 only.

Here is what I loaded:

Product: DL501, Stage 1
Variant: R1.33.2 7200 Shift, +Advanced Launch

Product: 3.0T Supercharged, Stage 1
Variant: 93 R7.0.2 +High Rev 7400 +Advanced Launch

Sounds like this is the way it is. Seems really stupid to me to downshift and you're already at redline, but I can adjust accordingly and live with it. I'm not driving around aggressively anyways and I've triggered this twice on the highway just trying to go around someone. I think using the paddles can solve this if I can remember to use them.

I was posting from my phone before and accidently deleted a post, but to be fair 034 support did tell me about the kick down on the pedal, but just wouldn't tell me if this is normal or not like I asked. Like I said, I really don't understand the point of down shifting to the red line no matter how you push the pedal... Not trying to cause any trouble with this vendor at all and I appreciate all of the insight from you all.

[Nillious]

Correct. I went through this with uni. Kick down was too close to shift point. So you would floor it cause you obviously needed to go as quickly as possible and it would downshift almost directly to the shift point then immediately try to shift up this actually caused it to over rev because it had to up shift a split second after a downshift. Ultimately fully depleting the purpose of the downshift in the first place.

I almost always use the paddles in my car so I may not have noticed it because of that. I live in a mountainous area and the cars never in the right gear for that terrain so I’m using paddles in manual mode almost always.

[SwankPeRFection]

If they don’t have a high rev trans tune to match it up, then put the ECU tune back to the lower rev one. It’s not doing anything anyway being on the high rev ECU if you’ve got the trans set to shift at 7200… aside from apparently causing this issue you’re seeing.

[2BLKDSM]

Correct. I went through this with uni. Kick down was too close to shift point. So you would floor it cause you obviously needed to go as quickly as possible and it would downshift almost directly to the shift point then immediately try to shift up this actually caused it to over rev because it had to up shift a split second after a downshift. Ultimately fully depleting the purpose of the downshift in the first place.

You definitely know what I'm talking about and just described it perfectly, especially with the over rev part which is why I would see the RPMs rising way above the tunes shift point. Basically with how things are for me with the tunes I have currently, I can never go WOT in auto without fear of damaging my car. Though I don't need to, to trigger this with that kick down and really never do.

If they don’t have a high rev trans tune to match it up, then put the ECU tune back to the lower rev one. It’s not doing anything anyway being on the high rev ECU if you’ve got the trans set to shift at 7200… aside from apparently causing this issue you’re seeing.

I'll check this out. I don't recall there being choices in the app, but I could be wrong and hopefully I am.

Thanks again all

[Nillious]

He has the correct tunes loaded. 7400 ecu rev limit with a 7200 shift. Sounds like there threshold for kick down to certain gears is too close to the up shift point.

Op. Get a video of this happening and post it up. Maybe they can make an adjustment for you.

[2BLKDSM]

He has the correct tunes loaded. 7400 ecu rev limit with a 7200 shift. Sounds like there threshold for kick down to certain gears is too close to the up shift point.

Op. Get a video of this happening and post it up. Maybe they can make an adjustment for you.

I thought about this, but only if 034 will put it in writing to cover the cost of any damage to my car I have a lot of miles and had the timing chain/guide service and more done last year. At this point I just want the car to get me from point A to B for while, though it drives great and I have no issues other than this.

I actually bought these tunes 1.5 years ago, but apparently did not have the TCU tune installed and installed a OEM update to the TCU via their app before. I took the tunes off before the timing service and put it back on afterwards 9 months ago and have triggered this issue twice on the highway. I really don't drive around aggressively, I leave that to all the 1990's Hondas in my area

[SwankPeRFection]

Another thing to check would be if maybe they’ve had any revisions in the 9 months since you last flashed. Maybe this was also adjusted when they did that other adjustment for the low speed drivability issue people where having that they kept insisting didn’t exist until it got a lot of traction on here to raise flags. It’s worth a check when you get home and break out the laptop.

[Nillious]

Mine has a version 33.2 as well. There IS a 33.3. The only difference I can tell between the two is the 33.3 is amax and 33.2 has ignition cut on shifts. I run the non amax cause my car has 139k on it and I decided leave the amax for the track only. As far as 0-60 times it’s about one tenth difference with amax so I figured save the wear and heat on the clutch pack.

[SwankPeRFection]

Is there just a normal 93 file that doesn’t have high rev on it?

[034Motorsport]

Please PM our AZ account the email address you have been in contact with us so I can take a look at our support ticket with you and loop in with the team regarding this.

-Nick@034