C7 throttle issue
Thread Starter
Cruising
Joined: Mar 2023
Posts: 11
Likes: 0
From: TN
C7 throttle issue
I have 14' stingray z51 7 speed and I'm having an odd behavior with the throttle when I first start out. The car starts to pulse the throttle and starts bucking with even pressure on the pedal.
if I let out it will stop but if I go back in to it almost immediately it will do it again. This doesn't happen everytime
I have a Soler throttle controller installed and wondering if this may be causing the issue. Haven't had a chance to test that theory as I haven't been able to get free time with it again. This issue wasn't there prior to the install so I'm wondering if I may have a bad throttle controller unit. I've reached out to Soler and waiting to hear back from them.
Another theory I have is maybe the wider tires I was able to go with and the traction control is engaging because of it.
I was able to stuff z06 width tires on my stingray front - 285/30/19
rear - 335/25/20.
I'm just trying to get some insight on what may be the cause this if anyone else has had similar issues. before I'm able to start doing some troubleshooting
if I let out it will stop but if I go back in to it almost immediately it will do it again. This doesn't happen everytime
I have a Soler throttle controller installed and wondering if this may be causing the issue. Haven't had a chance to test that theory as I haven't been able to get free time with it again. This issue wasn't there prior to the install so I'm wondering if I may have a bad throttle controller unit. I've reached out to Soler and waiting to hear back from them.
Another theory I have is maybe the wider tires I was able to go with and the traction control is engaging because of it.
I was able to stuff z06 width tires on my stingray front - 285/30/19
rear - 335/25/20.
I'm just trying to get some insight on what may be the cause this if anyone else has had similar issues. before I'm able to start doing some troubleshooting
Popular Reply
Feb 13, 2026, 04:22 PM
Supporting Vendor
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If anyone is experiencing any issues of any kind with one of our products, please feel free to reach out to us directly. We’re happy to help and stand behind what we make.
You can contact us by:
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251-468-9786
PM here on the forum
We typically respond within 24–48 hours.
We appreciate you all and are always here to assist.
Race Director
Joined: Mar 2010
Posts: 16,007
Likes: 827
Hello there. If you're unable to pinpoint the cause, we may suggest bringing it to a Chevrolet dealership to have a deeper diagnosis performed. Our team can help with that should you need it. Simply send us an email to socialmedia@gm.com to get started.
Melting Slicks
Joined: May 2006
Posts: 2,590
Likes: 403
From: Nashville TN
St. Jude Donor '09
Oh, just reread your post and see it doesn't happen every time. I get bucking occasionally on my '17 GS M7 with Soler TC and TB. It only does it in first gear and I'm holding RPM around 3K before shifting (merging into traffic). I always have Rev Match enabled. I assumed it was due to the performance gear ratios.
We are not the only ones with this issue:
https://www.corvetteforum.com/forums...post1607816548
We are not the only ones with this issue:
https://www.corvetteforum.com/forums...post1607816548
Last edited by redman76; Feb 12, 2025 at 01:49 PM.
Thread Starter
Cruising
Joined: Mar 2023
Posts: 11
Likes: 0
From: TN
Yeah I've only experienced it in first gear when starting off. When it starts if I don't let out of it; it will continue regardless if I press down on the accelerator pedal . It's kind of annoying especially if I'm trying to pull hard from a slow roll or stop. The last time it happened I even turned the sensitivity up and down and still gave the same issue.
I'm really wondering if the TC unit is bad or glitchy
I'm really wondering if the TC unit is bad or glitchy
Drifting
Joined: Jul 2017
Posts: 1,364
Likes: 1,334
From: Kingston, Ontario
Did you install the tires at the same time as the controller?
You can see if its the controller by simply unplugging it and testing if the problem goes away. If it does, plug it back in and see if it returns. That will tell you right away, its a simple process to disconnect it.
You can see if its the controller by simply unplugging it and testing if the problem goes away. If it does, plug it back in and see if it returns. That will tell you right away, its a simple process to disconnect it.
Thread Starter
Cruising
Joined: Mar 2023
Posts: 11
Likes: 0
From: TN
Nope I had the throttle controller before the new tires. It did it then so that eliminates the tires after thinking about when I got the controller.
I am going to disconnect it next time I'm at the car. I just didn't have time to troubleshoot it the last time it happened.
I just wanted to ask around see if anyone else has had the same issue and what they may have done to resolve the issue
Also to note it was doing this before a tune.
So it was doing this with the stock tune file.
I am going to disconnect it next time I'm at the car. I just didn't have time to troubleshoot it the last time it happened.
I just wanted to ask around see if anyone else has had the same issue and what they may have done to resolve the issue
Also to note it was doing this before a tune.
So it was doing this with the stock tune file.
Racer
Joined: Sep 2020
Posts: 423
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From: CO
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Racer
Joined: Sep 2020
Posts: 423
Likes: 390
From: CO
The throttle response can be tweaked in the tune, so if it was tweaked in the tune, the Soler will be an additional change on top of that and that may be an undesired result versus changing the known stock throttle response.
Thread Starter
Cruising
Joined: Mar 2023
Posts: 11
Likes: 0
From: TN
it was the exact same in the stock tune
Drifting
Joined: Jul 2017
Posts: 1,364
Likes: 1,334
From: Kingston, Ontario
Yes, this is mentioned in Soler's instructions for connecting the controller so I didn't mention it because I assume OP read the instructions when installing it.
Administrator
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Did you install the tires at the same time as the controller?
You can see if its the controller by simply unplugging it and testing if the problem goes away. If it does, plug it back in and see if it returns. That will tell you right away, its a simple process to disconnect it.
You can see if its the controller by simply unplugging it and testing if the problem goes away. If it does, plug it back in and see if it returns. That will tell you right away, its a simple process to disconnect it.
Thread Starter
Cruising
Joined: Mar 2023
Posts: 11
Likes: 0
From: TN
So I did extensive troubleshooting on the car.
I unhooked the throttle controller completely couldn't replicate it. I even cleaned the throttle body for good measure. Traction control wasn't a problem either, it does it with it on or off.
As soon as I would put any setting above the OEM level it would do it every time. So it seems the controller is doing something weird
I'm going to try to provide some video as to what it's doing.
I unhooked the throttle controller completely couldn't replicate it. I even cleaned the throttle body for good measure. Traction control wasn't a problem either, it does it with it on or off.
As soon as I would put any setting above the OEM level it would do it every time. So it seems the controller is doing something weird
I'm going to try to provide some video as to what it's doing.
Heel & Toe
Joined: Apr 2021
Posts: 18
Likes: 0
So I did extensive troubleshooting on the car.
I unhooked the throttle controller completely couldn't replicate it. I even cleaned the throttle body for good measure. Traction control wasn't a problem either, it does it with it on or off.
As soon as I would put any setting above the OEM level it would do it every time. So it seems the controller is doing something weird
I'm going to try to provide some video as to what it's doing.
I unhooked the throttle controller completely couldn't replicate it. I even cleaned the throttle body for good measure. Traction control wasn't a problem either, it does it with it on or off.
As soon as I would put any setting above the OEM level it would do it every time. So it seems the controller is doing something weird
I'm going to try to provide some video as to what it's doing.
Melting Slicks
Joined: Mar 2008
Posts: 2,453
Likes: 347
From: SC
Not the same issue, but several years ago I had an issue with the engine revving very high when engaging the clutch with the pre Bluetooth Soler controller installed. I contacted Mike at Soler and he sent a new unit. and the problem was gone. I'd reach out to Soler and see it they can shed some light. It's a great product but like everything else, there's a chance one could be bad...
Racer
Joined: Jan 2000
Posts: 463
Likes: 428
From: Massillon, OH USA
I had the same issue with mine. There is also a setting in the app for either “manual or auto” make sure it’s in manual mode. That was not my only issue though. I also think using rev match and all the different driving modes changes the throttle progression, and all this is confusing the built in ECM. It has not done anything for a while now. I think the car does a relearn. I have even used AI mode in the app. You can try a new unit too, can’t completely rule that out either?
Melting Slicks
Joined: Feb 2010
Posts: 3,330
Likes: 903
From: Kentucky
I had the same issue with mine. There is also a setting in the app for either “manual or auto” make sure it’s in manual mode. That was not my only issue though. I also think using rev match and all the different driving modes changes the throttle progression, and all this is confusing the built in ECM. It has not done anything for a while now. I think the car does a relearn. I have even used AI mode in the app. You can try a new unit too, can’t completely rule that out either?
Le Mans Master
Joined: Jun 2016
Posts: 5,426
Likes: 3,972
From: Cincinnati, OH
That TB controller is taking your gas pedal signals and altering them and then sending them to the TB. That's what these types of controllers do. Which means you are relying on 3rd party quality electronic devices to control your TB opening and closing.
Get rid of that throttle controller and pick up a Mamo Ported TB. It's a OEM GM TB/electronics and doesn't have 3rd party signal conditioning to go wrong and it does everything your TB controller does. Improves tip in driveability.
Get rid of that throttle controller and pick up a Mamo Ported TB. It's a OEM GM TB/electronics and doesn't have 3rd party signal conditioning to go wrong and it does everything your TB controller does. Improves tip in driveability.