Disable ISG (Idle Stop and Go) (Idle Stop and Go) and enable Sport mode on each start up for under $20

[D.J.]

would doing this trick work even though I am not able to use the swutch to disable them?

No.


This trick only simulates pressing the button.

 

[JSolo]

Someone posted a link to this on reddit. Thoughts?

Defeat Your Car’s Autostop Feature With A Little SwitchBot

These days, many new cars come with some variant of an “auto-stop” feature. This shuts down the car’s engine at stop lights and in other similar situations in order to save fuel a…

hackaday.com

 

[D.J.]

I made my own, which leaves everything fully functional, it just changes the default position by simulating a single button press. Can still re-enable by pressing the button.

https://imgur.com/a/RltYt8v

 

[Volfy]

I made my own, which leaves everything fully functional, it just changes the default position by simulating a single button press. Can still re-enable by pressing the button.

Good work. That's exactly what I plan to do. I already bought this timer relay: https://www.amazon.com/gp/product/B088Q9DQNM I don't think 15sec delay is necessary. I've pressed the ISG button almost right after start up and it worked, so just about any amount of delay should work.

Another thing... I believe there is a pull-down resistor built into the ISG button circuit. Not sure what the resistor value is, but I'm guessing 1k or 10k. I figure I'll measure it once I pull the center console cover to start the project, and I'll just duplicate that resistor value with my timer relay bypass circuit. I'm sure it'll probably work just fine without the pull-down resistor, but it's simply enough to add it to limit the pull down current draw.

(Note: I'll attach a schematic diagram, once the forum's server-side issue has been resolved.)

 

[D.J.]

I don't think 15sec delay is necessary. I've pressed the ISG (Idle Stop and Go) button almost right after start up and it worked, so just about any amount of delay should work.

Totally not necessary, BUT

For the brake auto hold - it will not work if the drivers door is open, and for me, occasionally, I start the car with the door open (don't know why) - so I added the timer - just for my usage case - specifically for the brake auto hold. (if you try to enable brake hold with the door open, you will see and error on the dash indicating you are not permitted).

Plus - I have come to expect, and enjoy the minor audible "Click" of my relay module... and the 15 second timer is entirly just a personal preference

Another thing... I believe there is a pull-down resistor built into the ISG (Idle Stop and Go) button circuit. Not sure what the resistor value is, but I'm guessing 1k or 10k. I figure I'll measure it once I pull the center console cover to start the project, and I'll just duplicate that resistor value with my timer relay bypass circuit. I'm sure it'll probably work just fine without the pull-down resistor, but it's simply enough to add it to limit the pull down current draw.

My timer triggers the simulated button press for 300ms (very quick press). Been using for over a year now with no resistor. Probably using a resistor is more technically correct - but I deemed it as unnecessary (maybe I live dangerously).

 

[JSolo]

^^Re resistors.. From what I recall from years ago, those resistors help prevent those pesky ambiguous states.

 

[Volfy]

For the brake auto hold - it will not work if the drivers door is open, and for me, occasionally, I start the car with the door open (don't know why) - so I added the timer - just for my usage case - specifically for the brake auto hold. (if you try to enable brake hold with the door open, you will see and error on the dash indicating you are not permitted).

Mine doesn't have auto brake hold, so I'm not familiar with how that works. Sounds like the delay works to your liking, so it's all good.

As for the resistor, this is ISG for a Genesis, but the circuit should be similar with Stinger. Looks like a pull-down for a logic pin, so it is there to avoid a floating voltage causing erroneous input. Stinger's ISG may have the inline resistor elsewhere and not built into the switch as shown. Even without the pull down, the circuit might work just fine. That certainly sounds like the case with yours. Even if it does get a false trigger, it's not going to hurt anything, other than needing another press of the button to reset the state. For me, finding out the value and installing one to match won't take much effort, so I'll do that when I get around to installing the relay.

 

[ThunderBoy724]

Idle Stop and Go disable

There are several threads on this subject so I apologize if this method has been mentioned and I missed it. Anyway, I've hated this 'feature' since I bought the car. I did this mod not long after I purchased the car so it has been in there for several months and around 11,000 miles with no...

stingerforum.org

 

[Volfy]

Idle Stop and Go disable

There are several threads on this subject so I apologize if this method has been mentioned and I missed it. Anyway, I've hated this 'feature' since I bought the car. I did this mod not long after I purchased the car so it has been in there for several months and around 11,000 miles with no...

stingerforum.org

Ah... so it's a 220 Ohms resistor. The schematic is drawn a bit differently than the Genesis one but looks like exactly the same circuit. No doubt they share some of the same components.

Just inserting the resistor basically does the exact same thing as what some owners do by jamming a piece of cardboard into the ISG button to keep it ON all the time. While this certainly disables the ISG... rather permanently, I think using a Timer relay to do a momentary switch is a more elegant solution. There are times when I would want to reactivate ISG... like getting stuck behind a rather long red light.

 

[Silentg4ost]

I know many folks are satisfied with one of the cheaper options (wedge something in the button or add a resistor yourself) and that is great. Just in case someone wants something completely plug and play that does not require tapping, cutting, splicing any wires, the folks over at Autostop Eliminators have their Stinger harness now available.

I do not work for them or get any kickback. I'm only posting this in case there is anyone who does not mind paying for a harness that is 100% plug and play that you can simply unplug at any time and leaves no trace that anything was installed. The harness allows you to turn on or off the ISG function and will remember it's setting until you manually change it.

Anyone happy with wedging something into the button to keep it depressed or splicing/tapping into the wiring to add a resistor for an inexpensive remedy by all means that is fine. I'm just throwing out there the other option for anyone who is not aware.

2018-2024 Kia Stinger Autostop Eliminator

This Autostop Eliminator is designed for Kia Stinger model years 2018-2024. The Autostop Eliminator will disable the auto-stop feature on your Kia Stinger.

www.autostopeliminator.com