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Discussion Starter · #1 ·
I watch videos and read the forums, but my 2020 N doesn't make any pops or bangs when shifting. My car is set for the loudest on the screen in the custom N mode, and even if I have it in the regular N mode, the exhaust never pops or backfires when I shift at higher RPMs. I mean the exhaust is definitely louder than all the other settings, but just no pops or bangs. I was wondering if they had made any changes on the 20 version of the N for the exhaust. Yes, exhaust is set for "sport +".
Does anyone have any input on this subject?
 

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I watch videos and read the forums, but my 2020 N doesn't make any pops or bangs when shifting. My car is set for the loudest on the screen in the custom N mode, and even if I have it in the regular N mode, the exhaust never pops or backfires when I shift at higher RPMs. I mean the exhaust is definitely louder than all the other settings, but just no pops or bangs. I was wondering if they had made any changes on the 20 version of the N for the exhaust. Yes, exhaust is set for "sport +".
Does anyone have any input on this subject?
Car needs to be completely warmed up or driven a little.

On N Custom, engine and rev match should also be in sport+.
 

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My 2020 makes copious amounts of pops & bangs, so I don’t think it has anything to do with the year of your car.

This could all be in my head, but I do feel like I get more pops & bangs when it’s cooler out. In the mornings when I drive to work it’s usually about 60-70 degrees, but by the afternoon we’re usually up in the triple digits. I still get the pops and bangs, but it seems like they aren’t as prevalent as they are in the morning. It is totally possible that I’m just zoned out, exhausted, and not paying attention later in the day...

What RPM are you shifting at?
 

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Discussion Starter · #4 ·
My 2020 makes copious amounts of pops & bangs, so I don’t think it has anything to do with the year of your car.

This could all be in my head, but I do feel like I get more pops & bangs when it’s cooler out. In the mornings when I drive to work it’s usually about 60-70 degrees, but by the afternoon we’re usually up in the triple digits. I still get the pops and bangs, but it seems like they aren’t as prevalent as they are in the morning. It is totally possible that I’m just zoned out, exhausted, and not paying attention later in the day...

What RPM are you shifting at?
Darkhorse, I usually shift at around 3 grand, but when I'm getting on it...around 6 grand.
 

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Pete, did you buy a Performance Package Veloster N? If it's not a PP, it's is the base model and it won't pop and crackle. the base model doesn't come with the, active exhaust.

Second, if it is a VN PP you'll need to be in N-Mode for it to work or set the N-Custom mode Exhaust setting to; N-Mode.
 

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Discussion Starter · #7 ·
Yes, I own the Performance Package. I had it to the dealership and they acknowledge there is a problem. We are waiting to hear from corporate Hyundai for a fix, since everything checks out, i.e., car's computer, timing retardation upon throttle uplift at higher revs.
I'll keep you guys posted on the outcome.
 

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Discussion Starter · #8 · (Edited)
I was called last Monday, the 30th of October, by my Hyundai dealership to bring my car back in to the dealer on Thursday, today, for my "N-mode" not operating properly.
I brought it in at about 9am this morning, and they gave me a loaner, 2019 Tucson. At around 3pm today, I received a call from Hyundai's service department. The Service Advisor, stated my car was repaired.
Jeff, the Advisor said, "It's popping and banging like it is supposed to, and throttle response is the way it should be in N-mode. You can come and get your car whenever it's convenient for you."
I picked up my Veloster N and WOW! Throttle response is the way my "sport mode" was, but now it works for N-mode. Sport mode, feels a little less responsive, again, the way it should've reacted when purchased. Also, my exhaust pops and bangs at higher RPMs when I shift or lift off the accelerator, exactly like what I've witnessed on all the YouTube videos watching other Veloster Ns.
The end result was that my technician did everything Hyundai told him to do, but nothing seemed to work any differently. The technician took it upon himself to reflash my computer, and that's what worked to make my car operate properly. I am very happy with the result. It's so much more fun to drive now!
 

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Great news! Sometimes, it just takes some additional and action though!! Without the ECU working correctly, you can't get the exhaust sound in N-Mode as it controls the amount of fuel being added to the cylinders, and affects the way the Anti-lag system operates.
 

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Discussion Starter · #10 ·
Great news! Sometimes, it just takes some additional and action though!! Without the ECU working correctly, you can't get the exhaust sound in N-Mode as it controls the amount of fuel being added to the cylinders, and affects the way the Anti-lag system operates.
As much as I liked it before the fix, I like even more now. So much fun.:confused: I didn't think it could get better, but it so much more enjoyable to drive.:devil:
 

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Hey guys and gals, I just wanted to update this thread. My family has two 2020 Veloster Ns and my wife's blue one had stopped popping for the most part. Hers has about 4k miles on it. My son's white one is still popping like normal and it has about 17k miles on it. My wife took the blue one to the dealership and let them know what the issue was. I had her reference the fact that a technician flashed the ECU and was able to correct the issue from this board. They took the car out and revved the car in neutral (didn't take it for a drive) and said it was operating normally. They then proceeded to write a work order that told my wife to "READ THE MANUAL".

Needless to say I gave the General Manager of the dealership (real nice guy to me since we bought 2 of these cars) a call and we discussed this passive/aggressive note on the work order and he agreed to have the service department reflash the ECU for me as a courtesy. After the reflash the car is now working properly! All the original pops and crackles have come back. My wife also noticed that after driving home from the dealership, the fan stayed on. She noted that she can't remember the last time the fan stayed running after the car was parked. When we originally picked up the car new the fan used to stay on often after driving.

Just another +1 to stick up for yourself in a polite, but firm manner. I'm not sure if this is an issue with the ECU "learning" and it causing the car to eventually become a slug, but something obviously was different and was corrected with an ECU reflash (reset.)


-Sam
 

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Hey guys and gals, I just wanted to update this thread. My family has two 2020 Veloster Ns and my wife's blue one had stopped popping for the most part. Hers has about 4k miles on it. My son's white one is still popping like normal and it has about 17k miles on it. My wife took the blue one to the dealership and let them know what the issue was. I had her reference the fact that a technician flashed the ECU and was able to correct the issue from this board. They took the car out and revved the car in neutral (didn't take it for a drive) and said it was operating normally. They then proceeded to write a work order that told my wife to "READ THE MANUAL".

Needless to say I gave the General Manager of the dealership (real nice guy to me since we bought 2 of these cars) a call and we discussed this passive/aggressive note on the work order and he agreed to have the service department reflash the ECU for me as a courtesy. After the reflash the car is now working properly! All the original pops and crackles have come back. My wife also noticed that after driving home from the dealership, the fan stayed on. She noted that she can't remember the last time the fan stayed running after the car was parked. When we originally picked up the car new the fan used to stay on often after driving.

Just another +1 to stick up for yourself in a polite, but firm manner. I'm not sure if this is an issue with the ECU "learning" and it causing the car to eventually become a slug, but something obviously was different and was corrected with an ECU reflash (reset.)


-Sam
Hey Sam I made a comment in another post where we were talking about this and since then I gave it a few revs in neutral like you mentioned in the post before and washed my car I made sure to spray into the exhaust on the right side a little to see if I could get rid of some built up carbon thinking that might have effected the valve sticking partially open. Now a few days later it does seem to be better and I also wonder if the ECU changed because I was trying for a few days to see how much higher I could get the MPG to go on the dash so I started to baby it a little more and that's when I noticed the more muffled exhaust noise and less pops and bangs.
 

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Hey Sam I made a comment in another post where we were talking about this and since then I gave it a few revs in neutral like you mentioned in the post before and washed my car I made sure to spray into the exhaust on the right side a little to see if I could get rid of some built up carbon thinking that might have effected the valve sticking partially open. Now a few days later it does seem to be better and I also wonder if the ECU changed because I was trying for a few days to see how much higher I could get the MPG to go on the dash so I started to baby it a little more and that's when I noticed the more muffled exhaust noise and less pops and bangs.
I'm not expecting much from it, but the Service Manager did acknowledge the change from re-flashing the ECU. He stated they would contact Hyundai to get more information on what's happening and how to handle this in the future. I'll update this thread if I get any further information.

-Sam
 

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I'm not expecting much from it, but the Service Manager did acknowledge the change from re-flashing the ECU. He stated they would contact Hyundai to get more information on what's happening and how to handle this in the future. I'll update this thread if I get any further information.

-Sam
Any updates?

I'm starting to notice a similar issue, I swear it popped when I shift around 4k but now, I barely get any burbles. Have to shift around 5-6k to even get a pop.
Gonna try take it in next weekend but wondering if you got anything or if anyone else has had this issue?
 

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Any updates?

I'm starting to notice a similar issue, I swear it popped when I shift around 4k but now, I barely get any burbles. Have to shift around 5-6k to even get a pop.
Gonna try take it in next weekend but wondering if you got anything or if anyone else has had this issue?
I do occasionally. Like another poster mentioned, I think the ECU learns driving behavior and if I'm cruising around gently for MPG's it may not pop if I gun it for whatever reason. The main contributor for the pops though is hard acceleration in my experience. If you roll into the throttle slowly all the way up to 4k then shift it probably won't pop. If you somewhat floor it so the turbo kicks in it probably will pop. Additionally, if you upshift very quickly it may not or it may be muffled. In other words, engine warmed up, engine and exhaust in sport+, gun it, let off throttle briefly before getting in next gear.

If all of that fails, I've had luck revving it all the way up in neutral which seems to clear up muffled exhaust for a while.
 

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Get a downpipe and your life will change.. lmao
A lot of people including myself wanted a car that has everything stock without bolting a million things on. I plan on keeping the car for a long time and using the warranty when needed. That's not to say that a downpipe is automatically going to cause warranty issues but it certainly could.
 

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A lot of people including myself wanted a car that has everything stock without bolting a million things on. I plan on keeping the car for a long time and using the warranty when needed. That's not to say that a downpipe is automatically going to cause warranty issues but it certainly could.
Fair enough! The car is set up perfectly from the factory...
 

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Just get a non resonated mid and life will be good. You'd be surprised at what a non res mid can do.

Best regards,

-Mike
 
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Completely agree with Mike. The non resonated Midpipe brightens up the exhaust allowing for a wider variety of burbles in addition to a slight increase in volume. Install is extremely easy too compared to a downpipe. Easily one of the best mods I’ve done to the car.
 
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