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Discussion Starter · #1 ·
What a crammed space to try and work in! I read on a Reddit post that you just "pop off the connector at the top of the accelerator pedal", but despite my best efforts to pull on the connector upwards from the connector and not the cables, I couldn't for the life of me get it out. Is there a video or shop manual I can look at to make sure I'm going about this the right way? I'd hate to break the connector and deal with a gas pedal that doesn't work.

I got the Sprint Booster just to play around with throttle mapping (not happy with the stock throttle map relatively to my tuned ECU ND Miata which I alternate with all the time), and see if their latest which they claim is compatible with the 2019 Veloster works with our N's. I preferred the Sprint Booster over something like the BMS Pedal Tuner because if you figure out which setting works for you and have no need to switch settings you can completely remove the selector from the harness and have it be super discreet; that, plus valet mode which sounds like it's going to be very useful in the future.
 

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Do you already have a piggy back for a tune? If not, that will change the mapping for the throttle too. It's not as extreme as a pedal box but at least you can change it on the fly with something like the Scorcher. You CANNOT do that with the Sprint Booster once the car is moving. Just something to think about.

Best regards,

-Mike
 

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Discussion Starter · #3 ·
I definitely considered it, but I didn't feel my VN needed more power. Plus it's not CARB exempt and I'd have to send it to someone I know out of state to send it to me, plus it's $250 extra ($420 vs $170), plus spark plugs... Didn't feel worth the hassle unless I keep it long enough and decide I'd like more power to play with.

My primary complaint with it has been the throttle map. Is it really true you can't change the Sprint Booster setting once moving? I know you can't change it while your foot is pressing the accelerator pedal, because that leads to an instant change in the throttle pedal value, at a pace your foot couldn't possibly have achieved, sent to the ECU, which confuses it, leads it to think the sensor has malfunctioned, and sends it into limp mode. But if you're coasting or stopped with the engine running, and the throttle signal is 0, changing the pedal tune setting should be totally fine, because it would still be zero. Am I missing something? In any case, like I said, my goal would be to find a setting I like and remove the selector, rather than keep messing with the tune on the fly. I have the drive modes for that.

Still, appreciate the suggestion!
 

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Discussion Starter · #4 ·
I did it! It was all a matter of repositioning myself on the driver's seat (both legs out the door) rather than trying to crawl my way into the footwell head first. That allowed me to use my right (good) hand and arm, and after I studied the clip and connector a bit on the harness, I managed to pull it off and install the Sprint Booster! Such an easy process, once you manage to pull the original throttle connector out.

The selector is tiny and super discreet. When it's off there's no lights and the LED screen is off, you wouldn't even know it was there driving in the dark. Even with it on, it's out of my line of sight and neither the light or screen are bright enough to distract me. Plus it's so small, as you can see in the photos below it's the size of the temperature knob. I don't think I'm going to take it out until it's time for a service appointment, and even then I'm happy to know I won't have to uninstall the entire throttle pedal harness, and that the selector itself is easily removable while the harness stays on, maintaining your last setting.

All in all, really happy with my first few drives with it. You're sacrificing some modulation range for responsiveness, but I appreciate how it now feels more consistent in response with my tuned Miata, and that I don't have to bury my foot on the floor to get the car to unleash the beast. Plus, I didn't find like I lost enough precision on the early range of the pedal to make driving at low speeds jerky or anything. You could have it on Sport and daily it, be in traffic, all of it just fine. But, given how easy it is to change modes on the fly, you don't have to, unless you really hate the way the connector looks and want it to leave it at home. Rev matching and heel-toe also become easier as the throttle responds faster and blips harder without requiring you to stretch the motion too much.

And like I said, Ghost, as long as your foot is completely off the throttle, you can change between all modes on the fly, car on and moving and everything. No need to stop or turn off the car or anything like that.

Excuse the shoddy picture quality, it got dark by the time I was done installing it and placing it and bunching up the cable and tucking it out of the way. I can take more photos if anyone's interested.

3315



3316
 

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I did it! It was all a matter of repositioning myself on the driver's seat (both legs out the door) rather than trying to crawl my way into the footwell head first. That allowed me to use my right (good) hand and arm, and after I studied the clip and connector a bit on the harness, I managed to pull it off and install the Sprint Booster! Such an easy process, once you manage to pull the original throttle connector out.

The selector is tiny and super discreet. When it's off there's no lights and the LED screen is off, you wouldn't even know it was there driving in the dark. Even with it on, it's out of my line of sight and neither the light or screen are bright enough to distract me. Plus it's so small, as you can see in the photos below it's the size of the temperature knob. I don't think I'm going to take it out until it's time for a service appointment, and even then I'm happy to know I won't have to uninstall the entire throttle pedal harness, and that the selector itself is easily removable while the harness stays on, maintaining your last setting.

All in all, really happy with my first few drives with it. You're sacrificing some modulation range for responsiveness, but I appreciate how it now feels more consistent in response with my tuned Miata, and that I don't have to bury my foot on the floor to get the car to unleash the beast. Plus, I didn't find like I lost enough precision on the early range of the pedal to make driving at low speeds jerky or anything. You could have it on Sport and daily it, be in traffic, all of it just fine. But, given how easy it is to change modes on the fly, you don't have to, unless you really hate the way the connector looks and want it to leave it at home. Rev matching and heel-toe also become easier as the throttle responds faster and blips harder without requiring you to stretch the motion too much.

And like I said, Ghost, as long as your foot is completely off the throttle, you can change between all modes on the fly, car on and moving and everything. No need to stop or turn off the car or anything like that.

Excuse the shoddy picture quality, it got dark by the time I was done installing it and placing it and bunching up the cable and tucking it out of the way. I can take more photos if anyone's interested.

View attachment 3315


View attachment 3316
How did you get the throttle harness disconnected? I have tried several times to remove but it doesn't pull out, is there something you had to push in prior , in order to get the harness conector to release from the top of the accelerator pedal?
Thanks
Ron
3884
Silver Leather Revolver Tool Strap
 

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Discussion Starter · #6 ·
Hey Ron, there's a tab on the right side of that black connector at the end of the cable. If you look at the Sprint Booster harness's connector that goes into the throttle pedal you'll see that it's the same connector and you can get a feel for that tab. You'll have to have it held down while you're pulling up in order to get it to release.

The other trick is, like I said, "repositioning myself on the driver's seat (both legs out the door) rather than trying to crawl my way into the footwell head first."
 

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Hey Ron, there's a tab on the right side of that black connector at the end of the cable. If you look at the Sprint Booster harness's connector that goes into the throttle pedal you'll see that it's the same connector and you can get a feel for that tab. You'll have to have it held down while you're pulling up in order to get it to release.

The other trick is, like I said, "repositioning myself on the driver's seat (both legs out the door) rather than trying to crawl my way into the footwell head first."
I did that .. and was not able to get the connector to disconnect, by pushing it up
 

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Discussion Starter · #8 ·
I did that .. and was not able to get the connector to disconnect, by pushing it up
It takes quite the effort to get it to disconnect, admittedly. I don't really have more advice other than make sure you have the tab pressed and that you've positioned yourself in a way that allows you to use your good arm. I gave up about 3 times and came back another day before I finally figured it out and got it disconnected. Good luck!
 

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It takes quite the effort to get it to disconnect, admittedly. I don't really have more advice other than make sure you have the tab pressed and that you've positioned yourself in a way that allows you to use your good arm. I gave up about 3 times and came back another day before I finally figured it out and got it disconnected. Good luck!
Thanks .. yes it must! I will try again tomorrow
Thanks again for the info !!
 

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Discussion Starter · #11 ·
Did you manage to get the connector disconnected? I did it again today just to practice, and I was able to get it off relatively easily once I contorted my body in the seat just right to get a good tight grip on the tab. Honestly, the hardest part was figuring out how to position myself. The first couple of tries I was only hurting my arm and not getting a good enough hold on the tab and it wouldn't budge, but then when I slid myself on the seat so that my right shoulder was buried under the steering wheel and I didn't have to fully extend my arm, it became quite easy to just hold the tab down and pull up and disconnect it.

I wish I could record a video of how I'm doing it, but I doubt you could see anything in such tight space.
 

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Discussion Starter · #12 ·
Also, fun fact, despite the fact that I disconnected the Sprint Booster harness from the throttle pedal and the original throttle connector for like a minute or two, it kept my last used setting when I reconnected. Must have some tiny bit of persistent onboard memory to keep your last setting even if you fully disconnect it and leave it without power.

I really like that now that I've figured out the perfect setting for my driving tastes (Sport 4) I can just leave the harness on and remove the selector altogether. As discreet as can be.
 

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Did you manage to get the connector disconnected? I did it again today just to practice, and I was able to get it off relatively easily once I contorted my body in the seat just right to get a good tight grip on the tab. Honestly, the hardest part was figuring out how to position myself. The first couple of tries I was only hurting my arm and not getting a good enough hold on the tab and it wouldn't budge, but then when I slid myself on the seat so that my right shoulder was buried under the steering wheel and I didn't have to fully extend my arm, it became quite easy to just hold the tab down and pull up and disconnect it.

I wish I could record a video of how I'm doing it, but I doubt you could see anything in such tight space.
No
I have done everything you suggested, it seems like the clip won't budge , have tried squeezing the top of it but nothing .. have tried it every day since last msg .. I must be missing the clip or not squeezing hard enough ?? ⁹
 

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No
I have done everything you suggested, it seems like the clip won't budge , have tried squeezing the top of it but nothing .. have tried it every day since last msg .. I must be missing the clip or not squeezing hard enough ?? ⁹
Here is where I'm squeezing the clip
Just above the red arrow
-Ron
 

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Discussion Starter · #15 ·
That's right. At the very top of the connector, on the right. Have you tried looking at the Sprint Booster harness itself and pressing that clip to get a feel for it?
 

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Discussion Starter · #19 ·
Just asking where the 3 bolts are, that's all. Kind of hard to see where things are in such a crammed space. Been going mostly by feel and taking photos with flash.
 

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Two at the bottom and one at the top of the throttle pedal. Look at the photos above. You’ll see their position.

Use a flashlight or a trouble light you’ll be able to see and work on them. It will take a bit of knee work but it’s quite a bit easier if the pedal is removed from it position. You can get a good grip on the plug to remove it.
 
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