Weird issue when accelerating

[COsting]

Hi all,

I am not that great with cars but I have a 23 stinger 3.3tt GT2 with less than 2k miles. Previously I had a 2020 3.3. I am familiar with the feel of these cars. I was trying to accelerate normally and it was simply not getting up to speed. I tried to floor the gas pedal and my RPMs went high but the car hardly moved. I stopped the vehicle, turned it off, let it sit for a few minutes and turned it back on. Once I turned it back on it was operating like normal with great speed. Thoughts on what happened? Should I take it into the dealership? No lights showed up on dash.

 

[bfglitch]

Sounds like you were in an overboost condition. It won't immediately show a check engine light unless it happens over and over, but if you hook a code reader up to the OBD2 port, there will be a "pending" code. The 22+ have a tendency to do this more often it seems, especially if you really get on the gas while the engine is cold, especially in cold weather. I had this happen to me about twice after I bought my 22 in December and it hasn't happened since the temps warmed up, but I kind of expect it might start happening again soon if I'm not careful. Not sure where you're located, but if you're in the northern hemisphere and the temps are dropping, you might want to allow your car to warm up a little longer before going wide open throttle.

Granted...this is just what it seems like is the case. There's several other threads on here discussing it as well.

 

[COsting]

Sounds like you were in an overboost condition. It won't immediately show a check engine light unless it happens over and over, but if you hook a code reader up to the OBD2 port, there will be a "pending" code. The 22+ have a tendency to do this more often it seems, especially if you really get on the gas while the engine is cold, especially in cold weather. I had this happen to me about twice after I bought my 22 in December and it hasn't happened since the temps warmed up, but I kind of expect it might start happening again soon if I'm not careful. Not sure where you're located, but if you're in the northern hemisphere and the temps are dropping, you might want to allow your car to warm up a little longer before going wide open throttle.

Granted...this is just what it seems like is the case. There's several other threads on here discussing it as well.

Thanks for the response. I was driving it normal and what I mean by that is I was driving it casually and not aggressive. I'm in colorado and today was a warmish day. It almost felt like it was in limp mode. I floored the pedal after I noticed this limping reaction to see if it would get up and go... it didn't. Not till I restarted the car. Could it be a slipping transmission.

 

[bfglitch]

Thanks for the response. I was driving it normal and what I mean by that is I was driving it casually and not aggressive. I'm in colorado and today was a warmish day. It almost felt like it was in limp mode. I floored the pedal after I noticed this limping reaction to see if it would get up and go... it didn't. Not till I restarted the car. Could it be a slipping transmission.

Still sounds a whole lot like the overboost condition. Next time it happens, switch your display to show the torque, boost, and oil temp. You'll probably notice it's not building any boost at all.

Also, I can't imagine a slipping transmission would be resolved by shutting down and restarting. The overboost definitely resets after shutting down and restarting.

 

[COsting]

Sounds like you were in an overboost condition. It won't immediately show a check engine light unless it happens over and over, but if you hook a code reader up to the OBD2 port, there will be a "pending" code. The 22+ have a tendency to do this more often it seems, especially if you really get on the gas while the engine is cold, especially in cold weather. I had this happen to me about twice after I bought my 22 in December and it hasn't happened since the temps warmed up, but I kind of expect it might start happening again soon if I'm not careful. Not sure where you're located, but if you're in the northern hemisphere and the temps are dropping, you might want to allow your car to warm up a little longer before going wide open throttle.

Granted...this is just what it seems like is the case. There's several other threads on here discussing it as well.

Thanks for the response. I was driving it normal and what I mean by that is I was driving it casually and not aggressive. I'm in colorado and today was a warmish day. It almost felt like it was in limp mode. I floored the pedal after I noticed this limping reaction to see if it would get up and go... it didn't. Not till I started the car. Could it be

Still sounds a whole lot like the overboost condition. Next time it happens, switch your display to show the torque, boost, and oil temp. You'll probably notice it's not building any boost at all.

Also, I can't imagine a slipping transmission would be resolved by shutting down and restarting. The overboost definitely resets after shutting down and restarting.

 

[COsting]

Thanks for the response. I was driving it normal and what I mean by that is I was driving it casually and not aggressive. I'm in colorado and today was a warmish day. It almost felt like it was in limp mode. I floored the pedal after I noticed this limping reaction to see if it would get up and go... it didn't. Not till I started the car. Could it be

Thanks for the response. I was driving it normal and what I mean by that is I was driving it casually and not aggressive. I'm in colorado and today was a warmish day. It almost felt like it was in limp mode. I floored the pedal after I noticed this limping reaction to see if it would get up and go... it didn't. Not till

Still sounds a whole lot like the overboost condition. Next time it happens, switch your display to show the torque, boost, and oil temp. You'll probably notice it's not building any boost at all.

Also, I can't imagine a slipping transmission would be resolved by shutting down and restarting. The overboost definitely resets after shutting down and restarting.

Would this cause my car to go into limp mode? Is there an indicator light when a stinger goes into limp mode?

 

[bfglitch]

Overboost definitely puts the car in "limp mode" as it's trying to protect your engine from damage. It doesn't always show any indicator when it happens. Like I mentioned earlier, if you hook a code reader to it...it'll show a "pending" code but not a current code. Basically the system is waiting to see if it's an issue that happens multiple times across multiple drive cycles. When you turn the car off and back on again and you go through another "drive cycle" and the car doesn't experience an overboost condition, it won't show the check engine light. But if it happens again (not sure how many times it would take in succession) then the check engine light will come on.

The code when you hook up a code reader is P0234. If it happens again, and if you don't have a code reader, drive it to a local car parts store. If you stop and restart and then drive it, there's a chance it'll clear the code at some point. Many will loan you a code reader or will assist you with it. There will most likely be a pending code of P0234.

 

[COsting]

Overboost definitely puts the car in "limp mode" as it's trying to protect your engine from damage. It doesn't always show any indicator when it happens. Like I mentioned earlier, if you hook a code reader to it...it'll show a "pending" code but not a current code. Basically the system is waiting to see if it's an issue that happens multiple times across multiple drive cycles. When you turn the car off and back on again and you go through another "drive cycle" and the car doesn't experience an overboost condition, it won't show the check engine light. But if it happens again (not sure how many times it would take in succession) then the check engine light will come on.

The code when you hook up a code reader is P0234. If it happens again, and if you don't have a code reader, drive it to a local car parts store. If you stop and restart and then drive it, there's a chance it'll clear the code at some point. Many will loan you a code reader or will assist you with it. There will most likely be a pending code of P0234.

I'll take it to a car store tomorrow to see if there is a code. If there is a code do I need to do anything? Take it to the dealer? Is there any fix I need to pursue?

 

[bfglitch]

I'll take it to a car store tomorrow to see if there is a code. If there is a code do I need to do anything? Take it to the dealer? Is there any fix I need to pursue?

If it does have a code, and if it's P0234, I wouldn't worry about it too much unless it keeps happening over and over. If it does keep happening, when it does happen, I'd drive it directly to the dealership so if it does come up as a pending code, they'll be able to see it. Make sure you let them know it's happened how ever many times since you took ownership of the car.

 

[StingerMG]

Hi all,

I am not that great with cars but I have a 23 stinger 3.3tt GT2 with less than 2k miles. Previously I had a 2020 3.3. I am familiar with the feel of these cars. I was trying to accelerate normally and it was simply not getting up to speed. I tried to floor the gas pedal and my RPMs went high but the car hardly moved. I stopped the vehicle, turned it off, let it sit for a few minutes and turned it back on. Once I turned it back on it was operating like normal with great speed. Thoughts on what happened? Should I take it into the dealership? No lights showed up on dash.

Do you know what your oil temp was? I think the car has a failsafe where the turbos disengage if the oil isn't hot enough since the turbos are oil cooled.

 

[Mo-mo]

Do you know what your oil temp was? I think the car has a failsafe where the turbos disengage if the oil isn't hot enough since the turbos are oil cooled.

That was going to be my guess. With all the fail safes on an engine these days. Considering cold oil doesn't flow as well as operating temp, not enough flow to the turbo could cause it to limp, mostly so the engine doesn't shit the bed like an untrained puppy.

 

[SRV]

@bfglitch has nailed it on the head - reread his posts.

The best way to avoid limp-mode is to make sure the oil-temp is at full operating temperature before getting on it hard.

 

[G-451584]

This happened every time I drive it, and I live in Az what can I do ?

 

[SRV]

This happened every time I drive it, and I live in Az what can I do ?

Drive the car, make it throw the error, and then immediately drive to the Kia dealer so they can see and record the error. Hopefully they can find something wrong.

Is the car stock, and do you allow it to get to operating temp before getting on it?