2.0T Stinger doesn't move when accelerating

[SFM]

Hi everyone. So basically, around a week ago, I got my first ever check engine light on my 2.0T Stinger, and the next day I'm at the service centre. They checked and couldn't find anything wrong, so they erased the check engine light. Fast forward about three days later, I got the engine light again. I went ahead and took it to the service centre, and it stayed with them for around a day. They told me they cleaned all the "sensors" and the throttle body. I also noticed that they drove the car for about 70 km (43 miles).

I took the car and left, and since the engine was cold, I didn't step on it right after leaving, but after around 10 minutes, I tried accelerating a little harder. I could hear the turbo spooling loud and the engine noise getting higher, but the car wasn't moving faster. It stays at a very slow speed like it's stuck on the first gear or something. I also tried flooring it in sport mode, and the engine sounded like it was about to explode from how hard it was trying to move the car. Unfortunately, I didn't take it back to them as I received my car right before they closed, but I'll take it to them tomorrow. At this point, I couldn't overtake even the slowest cars on the road. What do you think they've done to cause all this?

 

[MerlintheMad]

I also noticed that they drove the car for about 70 km (43 miles).

"Bueller ..."

It's in "limp mode", which from what I've read can be brought on by a variety of causes: the ECU is protecting the drivetrain? Sounds like it. Don't push it, or you'll be towing it. Good luck replicating this nasty fubar.

 

[SFM]

"Bueller ..."

It's in "limp mode", which from what I've read can be brought on by a variety of causes: the ECU is protecting the drivetrain? Sounds like it. Don't push it, or you'll be towing it. Good luck replicating this nasty fubar.

Do they put it in limp mode or does it come on by itself to protect the drivetrain as you said? I'll be taking it to them tomorrow. I usually arrive in 25 minutes but this time it will take a lot longer.

 

[JSolo]

Lots of failsafes in the ecu programming. When it detects some parameters outside the 'normal' range, depending what it is, the ecu goes into this limp mode so you can get off the hwy to someplace safe.

 

[SFM]

They finally found the problem, which turned out to be a high-pressureure fuel pump. It's getting replaced under warranty. I'm not sure if that caused the car to go into limp mode if it did, though.

 

[MerlintheMad]

A bad fuel pump could stop the engine entirely; or something less that would produce the same lack of power as "limp mode": but typically, if the car continues to run at all, it runs roughly like it's going to stall.

Glad they determined the problem right away. Should go swimmingly after this.

 

[SFM]

Update: they replaced the fuel pump and the car is still in something that’s limiting the car to around 2.5k rpm, which is most likely limp mode I don’t know if it is, but the car takes like 20 seconds to reach 60 mph and rpms climb very slow even when it’s floored. They told me now it could be the turbo that’s causing it as well. Why would many things go bad at once? Whenever I floor it I can hear the turbo sucking in air and the engine struggling loudly to move the car and it won’t go faster

 

[MerlintheMad]

Update: they replaced the fuel pump and the car is still in something that’s limiting the car to around 2.5k rpm, which is most likely limp mode I don’t know if it is, but the car takes like 20 seconds to reach 60 mph and rpms climb very slow even when it’s floored. They told me now it could be the turbo that’s causing it as well. Why would many things go bad at once? Whenever I floor it I can hear the turbo sucking in air and the engine struggling loudly to move the car and it won’t go faster

It must be "limp mode", i.e., a central computer failure of some kind: entire, multiple causes almost never happen at once. But where are the error codes?

 

[SFM]

It must be "limp mode", i.e., a central computer failure of some kind: entire, multiple causes almost never happen at once. But where are the error codes?

I haven't asked them to give me the error codes, but before they replaced the fuel pump, they told me that an error code showed six things that needed to be checked, and after they did their checking, they found out the fuel pump needed replacement.

And earlier today, they found another code which was for the turbo. So at the moment, they are telling me the turbo might be causing all these problems. They'll be continuing their checks and will update me on Saturday as they're closed on Friday. It only has 39k miles, and I never took it to the track. I'm going to ask them to give me the error codes this Saturday.

I feel they blew the turbo somehow, as after replacing the fuel pump, they tested the car on public roads for almost 200 miles while it was in limp mode. Their car tester kept saying that it was okay and running normally. When they told me the car was done yesterday, I tested it outside the dealership and immediately noticed that limp mode was still active. I took it back to them and took what they call the "engineer" of that dealership with me for a test drive, and he said that there's definitely an issue with the car, as it was very slow, and he said it's supposed to "fly" even though it's the 2.0T.

I'm not sure how the person that tested the car said it was running normally, as when I tested the car, I couldn't even overtake a Nissan Versa.

 

[MerlintheMad]

they tested the car on public roads for almost 200 miles while it was in limp mode.

"Bueller!" These stories of joyriding are starting to become common. There is no way that anyone can justify 200 miles added to your car while they are working on it.

 

[GT Driver]

Hey did we ever come to a resolution with this issue? I have 2022 Kia Stinger GT-Line and running across similar issues. The car runs relatively normal except for when I go to step on it. The vehicle then proceeds to rev to about 5000rpm but isn’t accelerating at all.. Anything on this?

 

[Andib4real]

Hey did we ever come to a resolution with this issue? I have 2022 Kia Stinger GT-Line and running across similar issues. The car runs relatively normal except for when I go to step on it. The vehicle then proceeds to rev to about 5000rpm but isn’t accelerating at all.. Anything on this?

Did you ever find a solution? I have the same, 2022 GT-Line and it's doing the same. Running normal until I step on it. No check engine light.