Loss of power ?

[Bruce Adams]

Last night i was merging into traffic and right when my Stinger got into boost in 4th-5th if fell on its nose. Blow off valves weren't holding pressure is what I believe it felt like. Anyone have this issue before ?

 

[MerlintheMad]

I don't know if I am flirting with this too: I get on the boost, and my engine "stutters/chugs" for a second (give or take) before smoothly accelerating. Nervous, I am, as this has been going on since early October (right after I had my plugs changed at c 45K miles: yes, I have mentioned this several times already, but hey!).

 

[Bruce Adams]

Wonder if it is overboosting? Don't really know.

 

[MerlintheMad]

Is over-boosting a thing with a stock car? I haven't heard.

 

[Bruce Adams]

Mines not stock. I dont have a tuner yet.

 

[General_Vodka]

Last night i was merging into traffic and right when my Stinger got into boost in 4th-5th if fell on its nose. Blow off valves weren't holding pressure is what I believe it felt like. Anyone have this issue before ?

Was it a road imperfection? The traction and stability system is very picky on our cars. were you in sport mode or comfort? Traction on? Mine dumps boost sometimes when I hit bad pavement. pretty annoying so I drive in sport mode more often since it happens less.

 

[Bruce Adams]

Was in Comfort mode and the road was alittle damp. Would it matter if the temperature was damn near 19° out ? Seems to be fine now, just had me alittle weirded out. But with that being said I have a question about the stock bov/recirc valves. Could one go bad putting all the duty on the other ?

 

[vipeboy2000]

Was in Comfort mode and the road was alittle damp. Would it matter if the temperature was damn near 19° out ? Seems to be fine now, just had me alittle weirded out. But with that being said I have a question about the stock bov/recirc valves. Could one go bad putting all the duty on the other ?

if it was damp and 19 out, possible you hit a patch of slick ice and tire slipped on accel causing traction control to cut fuel? I've had traction control kick in and it happens so fast that the light on the dash doesn't flicker... i've noticed it will only trigger the traction light on the dash for longer interventions of traction control... and it def feels like it just falls on it's face... our 540i did the same thing. it rarely does it on our awd though ... I didn't want awd initially but being able to accel in wet/ slippery conditions far more confidently has swayed me over...

 

[Bruce Adams]

Thank you for clarifying this information for me. Appreciate you guys.

 

[Veggomatic]

This has happened to others as well, with nothing to do with traction control. I can't post a link, but on page two of this Engine, Drivetrain, and Exhaust look for a post titled "Turbos were not working". (can't post a link to it) I've also read other reports of similar things happening in other threads.

It happened to me last weekend, after going through a toll both between Indiana and Chicago. It *appears* that cold temperature along with some bolt on mods are creating an overboost situation. When it happened to me, I was ~1hr into a road trip at highway speeds. Ambient air was 14F, car was in comfort mode, zero ice/salt/sand on the road, and I was accelerating out of an open tolling booth to get ahead of the semis. Car pulled normally, then BOV's opened and the car wasn't building boost after. Otherwise no issues. Drove fine for ~30 minutes, just no power/boost. Got to where I could shut the car off safely, sat for 5 minutes, then turned on and took for a drive and it built power/boost like normal. Tried to duplicate the issue and I couldn't.

My only mods are AEM intakes, ARK mid pipes, and Magnaflow exhaust.

 

[vipeboy2000]

This has happened to others as well, with nothing to do with traction control. I can't post a link, but on page two of this Engine, Drivetrain, and Exhaust look for a post titled "Turbos were not working". (can't post a link to it) I've also read other reports of similar things happening in other threads.

It happened to me last weekend, after going through a toll both between Indiana and Chicago. It *appears* that cold temperature along with some bolt on mods are creating an overboost situation. When it happened to me, I was ~1hr into a road trip at highway speeds. Ambient air was 14F, car was in comfort mode, zero ice/salt/sand on the road, and I was accelerating out of an open tolling booth to get ahead of the semis. Car pulled normally, then BOV's opened and the car wasn't building boost after. Otherwise no issues. Drove fine for ~30 minutes, just no power/boost. Got to where I could shut the car off safely, sat for 5 minutes, then turned on and took for a drive and it built power/boost like normal. Tried to duplicate the issue and I couldn't.

My only mods are AEM intakes, ARK mid pipes, and Magnaflow exhaust.

Was in Comfort mode and the road was alittle damp. Would it matter if the temperature was damn near 19° out ? Seems to be fine now, just had me alittle weirded out. But with that being said I have a question about the stock bov/recirc valves. Could one go bad putting all the duty on the other ?

i guess question to Bruce would be was the car normal after this incident? or did it require a restart to resolve the power... from everything i've seen and read, if it was an overboost situation, it would require a restart of the car, if it was just a fuel cut (traction ) issue, it should just be fine right away...

 

[Bruce Adams]

Yes everything was normal the next time I drove her.

 

[Diggler1101]

This has happened to others as well, with nothing to do with traction control. I can't post a link, but on page two of this Engine, Drivetrain, and Exhaust look for a post titled "Turbos were not working". (can't post a link to it) I've also read other reports of similar things happening in other threads.

It happened to me last weekend, after going through a toll both between Indiana and Chicago. It *appears* that cold temperature along with some bolt on mods are creating an overboost situation. When it happened to me, I was ~1hr into a road trip at highway speeds. Ambient air was 14F, car was in comfort mode, zero ice/salt/sand on the road, and I was accelerating out of an open tolling booth to get ahead of the semis. Car pulled normally, then BOV's opened and the car wasn't building boost after. Otherwise no issues. Drove fine for ~30 minutes, just no power/boost. Got to where I could shut the car off safely, sat for 5 minutes, then turned on and took for a drive and it built power/boost like normal. Tried to duplicate the issue and I couldn't.

My only mods are AEM intakes, ARK mid pipes, and Magnaflow exhaust.

This has happened to others as well, with nothing to do with traction control. I can't post a link, but on page two of this Engine, Drivetrain, and Exhaust look for a post titled "Turbos were not working". (can't post a link to it) I've also read other reports of similar things happening in other threads.

It happened to me last weekend, after going through a toll both between Indiana and Chicago. It *appears* that cold temperature along with some bolt on mods are creating an overboost situation. When it happened to me, I was ~1hr into a road trip at highway speeds. Ambient air was 14F, car was in comfort mode, zero ice/salt/sand on the road, and I was accelerating out of an open tolling booth to get ahead of the semis. Car pulled normally, then BOV's opened and the car wasn't building boost after. Otherwise no issues. Drove fine for ~30 minutes, just no power/boost. Got to where I could shut the car off safely, sat for 5 minutes, then turned on and took for a drive and it built power/boost like normal. Tried to duplicate the issue and I couldn't.

My only mods are AEM intakes, ARK mid pipes, and Magnaflow exhaust.

This same thing happens to me in my 2022 GT2 awd. I also have the AEM intakes, and a MBRP catback. Usually what will happen is the car will run fine at the start then during freeway driving, I’ll try and accelerate to either pass someone or get on the freeway and it will usually do it just fine the first time or 2, then will just stop with the hard accelerating. It will continue to accelerate but you don’t hear the turbos spool barely at all and you barely hear the BOV’s working. Feels like you are driving a car with half the amount of power. Were you able to figure out what was causing this? Should mention this happens to me regardless of temp outside but doesn’t happen in any sort of consistency.

 

[Princess Carolyn's Boo]

This same thing happens to me in my 2022 GT2 awd. I also have the AEM intakes, and a MBRP catback. Usually what will happen is the car will run fine at the start then during freeway driving, I’ll try and accelerate to either pass someone or get on the freeway and it will usually do it just fine the first time or 2, then will just stop with the hard accelerating. It will continue to accelerate but you don’t hear the turbos spool barely at all and you barely hear the BOV’s working. Feels like you are driving a car with half the amount of power. Were you able to figure out what was causing this? Should mention this happens to me regardless of temp outside but doesn’t happen in any sort of consistency.

I also have a 2022 GT2 AWD with Injen intakes, HKS BOVs, and a Borla exhaust installed. The same thing happened to me for the first time last night, it felt like I was driving my 2.0T Fusion with 230 HP when i tried to floor it on the highway, going from 80 to 100 in a whole 5 seconds. I just made a post about it last night. How often do you encounter this?

 

[rpoffen]

I also have a 2022 GT2 AWD with Injen intakes, HKS BOVs, and a Borla exhaust installed. The same thing happened to me for the first time last night, it felt like I was driving my 2.0T Fusion with 230 HP when i tried to floor it on the highway, going from 80 to 100 in a whole 5 seconds. I just made a post about it last night. How often do you encounter this?

Been a number of people said that 2022's tend to get into overboost more than previous years. Someone said that Kia changed the tuning a bit.
If it's stock, then should be a dealer issue to fix under warranty, stock should definitely not do this.
If tuned with jb4, then install EWG wires to help tune the wastegate response.

 

[grilledcheesesamich]

I've been seeing this in a few other threads. I've been looking at getting some air intakes and exhaust system before tuning the car, but this makes me weary of putting in the mods. It sounds like getting the car tuned afterwards seems to resolve the issue, but why? It would be nice to understand why this is happening. I didn't really want to pay for a tune at the same time as an air intake and exhaust.

 

[bfglitch]

I've been seeing this in a few other threads. I've been looking at getting some air intakes and exhaust system before tuning the car, but this makes me weary of putting in the mods. It sounds like getting the car tuned afterwards seems to resolve the issue, but why? It would be nice to understand why this is happening. I didn't really want to pay for a tune at the same time as an air intake and exhaust.

This usually seems to happen more on 22+, especially when the temps are cold. Can't really tell you about adding intakes/exhaust in regular temps. I only just now got intakes and the temps are dropping here. So I guess I'll find out.

The reason why adding a tune "fixes" it is because depending on what you're doing for the tune, it changes how it handles overboost situations. Standard settings tend to trip overboost easier. Most tunes allow a little more boost so less likely to go into overboost condition...but it can still happen.

 

[grilledcheesesamich]

This usually seems to happen more on 22+, especially when the temps are cold. Can't really tell you about adding intakes/exhaust in regular temps. I only just now got intakes and the temps are dropping here. So I guess I'll find out.

The reason why adding a tune "fixes" it is because depending on what you're doing for the tune, it changes how it handles overboost situations. Standard settings tend to trip overboost easier. Most tunes allow a little more boost so less likely to go into overboost condition...but it can still happen.

Up in Northern Canada here, I can tell you 6 months of our year is Winter.

 

[bfglitch]

Yeah in that case I would recommend giving the car ample time to warm up before you really get on the gas. Don't just wait for the oil temps on the gauges to hit operating temp. That's not long enough. Takes a bit longer for everything to get up to temp. Only thing I can really recommend for now. I'm still trying trying to figure out the overboost myself. Haven't had it happen once since it warmed up. Happened twice after I got the car while it was cold out.