Help Opinions on CO poisoning by a vehicle?

[Raskolnikov's Axe]

Hello everyone. I used to be a frequent poster here. Left to focus on recovery. Guess how that turned out. Well, at least I saved up a couple of thousands working a soulless, minimum wage job so I guess the silver lining is that my funeral will be paid for.

I have a car and I am curious about the methodology of CO poisoning. What are the odds of success?

I read a medical report about a guy who pretty much laid below an exhaust outdoors and dispatched himself that way.

My attempt would also take place outdoors, but my line of thinking is that I would attach a plastic (or some other type of bendable material) pipe to the exhaust pipe and lead it to the barely cracked window inside the car, and I would down a couple of sleeping pills.

Is there any way this would succeed or am I just deluding myself? Many thanks for any help provided.

 

[tulero]

not possible anymore, catalytic converter is your problem

 

[bankai]

I've been reading about this stuff and I don't think this particular method is feasible.i think cars in the last few years are coming out with Catalytic converters that greatly reduce the amount of carbon monoxide produced.

Crazy that that guy could take the bus by just lying next to the exhaust

 

[TheVanishingPoint]

Yes, carbon monoxide still kills even with modern cars. Catalytic converters reduce emissions but do not eliminate them, and in a closed environment like a garage, CO levels can still become lethal. There are recent documented cases in the United States: two teenagers died in Arizona in November 2024, an elderly restaurant owner in Maryland in March 2025, three Marines died in North Carolina in July 2023, and two children died in Detroit in February 2025—all confirmed CO poisonings. CDC data is clear: about 2,000 suicides per year from CO, over 500 accidental deaths. So no, this is not a myth. Modern cars still emit enough CO to kill if left running in a closed space for long enough. You don't need a car from the 1980s—you just need the right conditions. The rest is silence.

18-year-old found dead in garage with friend, 17, from suspected carbon monoxide poisoning

Two young men in Arizona have been found dead due to apparent carbon monoxide poisoning.

www.kktv.com

Kids died of carbon monoxide poisoning in Detroit parking garage incident

The Medical Examiner said carbon monoxide poisoning is what led to the tragic death of two children in a van at a Detroit casino parking garage last month.

www.scrippsnews.com

 

[tulero]

Yes, carbon monoxide still kills even with modern cars. Catalytic converters reduce emissions but do not eliminate them, and in a closed environment like a garage, CO levels can still become lethal. There are recent documented cases in the United States: two teenagers died in Arizona in November 2024, an elderly restaurant owner in Maryland in March 2025, three Marines died in North Carolina in July 2023, and two children died in Detroit in February 2025—all confirmed CO poisonings. CDC data is clear: about 2,000 suicides per year from CO, over 500 accidental deaths. So no, this is not a myth. Modern cars still emit enough CO to kill if left running in a closed space for long enough. You don't need a car from the 1980s—you just need the right conditions. The rest is silence.

18-year-old found dead in garage with friend, 17, from suspected carbon monoxide poisoning

Two young men in Arizona have been found dead due to apparent carbon monoxide poisoning.

www.kktv.com

Kids died of carbon monoxide poisoning in Detroit parking garage incident

The Medical Examiner said carbon monoxide poisoning is what led to the tragic death of two children in a van at a Detroit casino parking garage last month.

www.scrippsnews.com

maybe buying an old second-hand car is a possibility

a model you know beforehand someone comitted ctb with

 

[TheVanishingPoint]

maybe buying an old second-hand car is a possibility

a model you know beforehand someone comitted ctb with

There is no need to buy an old car.

 

[Raskolnikov's Axe]

Yes, carbon monoxide still kills even with modern cars. Catalytic converters reduce emissions but do not eliminate them, and in a closed environment like a garage, CO levels can still become lethal. There are recent documented cases in the United States: two teenagers died in Arizona in November 2024, an elderly restaurant owner in Maryland in March 2025, three Marines died in North Carolina in July 2023, and two children died in Detroit in February 2025—all confirmed CO poisonings. CDC data is clear: about 2,000 suicides per year from CO, over 500 accidental deaths. So no, this is not a myth. Modern cars still emit enough CO to kill if left running in a closed space for long enough. You don't need a car from the 1980s—you just need the right conditions. The rest is silence.

18-year-old found dead in garage with friend, 17, from suspected carbon monoxide poisoning

Two young men in Arizona have been found dead due to apparent carbon monoxide poisoning.

www.kktv.com

Kids died of carbon monoxide poisoning in Detroit parking garage incident

The Medical Examiner said carbon monoxide poisoning is what led to the tragic death of two children in a van at a Detroit casino parking garage last month.

www.scrippsnews.com

So, it has to be in an enclosed space? The garage I have access too is far to small to house a car. You don't suppose I could lead the pipe from the exhaust to the barely cracked window and then cover and tape up any excess space?

Thank you so much for your help.

 

[tulero]

There is no need to buy an old car.

but if you dont have a car beforehand and want to do the CO method, if you are considering to buy the device that counts up to 10000ppm when burning the charcoal, that device is not cheap and maybe for a similar price you can buy a very old car and do it with it instead burning charcoal and would be easier

im just guessing

 

[TheVanishingPoint]

So, it has to be in an enclosed space? The garage I have access too is far to small to house a car. You don't suppose I could lead the pipe from the exhaust to the barely cracked window and then cover and tape up any excess space?

Thank you so much for your help.

If your idea is to run the tube through the car window, it's still considered a closed environment, so that's perfectly fine. Just leave the engine running for about an hour — that's more than enough. In the meantime, you can stay outside, and then enter after the time has passed. If you have a ppm detector, that makes it even more reliable. Also, carbon monoxide accumulates in the tissues and saturates the environment — opening the door for a few seconds doesn't suddenly refresh all the air inside. Thinking that the CO just vanishes in that short moment is pure science fiction.

 

[finalgoodbye:(]

I think @Praestat_Mori knows a thing or two about CO poisoning

 

[LeavingEarly]

Why not use charcoal?

 

[Praestat_Mori]

Charcoal metthod advice (CO)

ttps://sanctioned-suicide.net/threads/charcoal-method-advice.94265/post-1655792

 

[TheVanishingPoint]

but if you dont have a car beforehand and want to do the CO method, if you are considering to buy the device that counts up to 10000ppm when burning the charcoal, that device is not cheap and maybe for a similar price you can buy a very old car and do it with it instead burning charcoal and would be easier

im just guessing

There's really no need to buy an old car just for that purpose. If someone wants a more convenient approach, using their current vehicle is perfectly fine. Otherwise, if a faster result is desired, there are much more efficient devices:

Portable generator: ~0.7 minutes

Gasoline chainsaw: ~2 minutes

Gas-powered lawn mower: ~3 minutes

Gasoline leaf blower: ~4 minutes

Gas-powered pressure washer: ~2.4 minutes


With these tools, you can reach 10,000 PPM of carbon monoxide inside a closed car cabin within just a few minutes, without complications.
No need to buy an old car or debate the cost of a ppm detector.

 

[tulero]

There's really no need to buy an old car just for that purpose. If someone wants a more convenient approach, using their current vehicle is perfectly fine. Otherwise, if a faster result is desired, there are much more efficient devices:

Portable generator: ~0.7 minutes

Gasoline chainsaw: ~2 minutes

Gas-powered lawn mower: ~3 minutes

Gasoline leaf blower: ~4 minutes

Gas-powered pressure washer: ~2.4 minutes


With these tools, you can reach 10,000 PPM of carbon monoxide inside a closed car cabin within just a few minutes, without complications.
No need to buy an old car or debate the cost of a ppm detector.

i dont know if im getting what you say

you mean if i put a gasoline chainsaw inside a closed car cabin and I turn it on, in roughly 2 minutes there will be 10000ppm of CO inside the car ?

 

[TheVanishingPoint]

i dont know if im getting what you say

you mean if i put a gasoline chainsaw inside a closed car cabin and I turn it on, in roughly 2 minutes there will be 10000ppm of CO inside the car ?

Yes, at a concentration of around 10,000 ppm of carbon monoxide in a closed space like a car, loss of consciousness can occur very quickly. CO binds strongly to hemoglobin in the blood, blocking the transport of oxygen to vital tissues, especially the brain. In a saturated and unventilated environment, exposure causes a hypoxic effect that rapidly impairs neurological functions. These dynamics are well documented by organizations such as the CDC and NIOSH.

 

[tulero]

Yes, at a concentration of around 10,000 ppm of carbon monoxide in a closed space like a car, loss of consciousness can occur very quickly. CO binds strongly to hemoglobin in the blood, blocking the transport of oxygen to vital tissues, especially the brain. In a saturated and unventilated environment, exposure causes a hypoxic effect that rapidly impairs neurological functions. These dynamics are well documented by organizations such as the CDC and NIOSH.

yeah, what i didnt know is that the kind of machines you wrote in the previous post produce that high concentration of CO

 

[TheVanishingPoint]

yeah, what i didnt know is that the kind of machines you wrote in the previous post produce that high concentration of CO

A gasoline chainsaw produces large amounts of carbon monoxide because it uses an internal combustion engine, often a two-stroke one, which burns the air-fuel mixture inefficiently. Unlike modern cars with catalytic converters, these engines don't filter anything and release CO directly through the exhaust. For this reason, in an enclosed space like the inside of a car, it only takes a few minutes to reach concentrations above 10,000 ppm.

 

[Raskolnikov's Axe]

If your idea is to run the tube through the car window, it's still considered a closed environment, so that's perfectly fine. Just leave the engine running for about an hour — that's more than enough. In the meantime, you can stay outside, and then enter after the time has passed. If you have a ppm detector, that makes it even more reliable. Also, carbon monoxide accumulates in the tissues and saturates the environment — opening the door for a few seconds doesn't suddenly refresh all the air inside. Thinking that the CO just vanishes in that short moment is pure science fiction.

Interesting. Thank you for your help. The only thing I wonder about now is SI. I had a bad experience with partial hanging a few years ago and I hope not to ruin my chances by panicking or something.

 

[J&L383]

not possible anymore, catalytic converter is your problem

Take the catalytic converter off the car and maybe you have a chance. But you'd have to somehow tune the car rich so that it's getting too much gas, better find yourself a 60s vehicle and that would do the job.

 

[wham311]

If your idea is to run the tube through the car window, it's still considered a closed environment, so that's perfectly fine. Just leave the engine running for about an hour — that's more than enough. In the meantime, you can stay outside, and then enter after the time has passed. If you have a ppm detector, that makes it even more reliable. Also, carbon monoxide accumulates in the tissues and saturates the environment — opening the door for a few seconds doesn't suddenly refresh all the air inside. Thinking that the CO just vanishes in that short moment is pure science fiction.

So what exactly do you do? Connect a tube from exhaust pipe and a hose of some sort to the driver's window and put it in?

Also from wiki

Suicide by carbon monoxide poisoning may be attempted by running the engine in an enclosed garage, or by piping the exhaust gas into the driver's compartment with a hose, but catalytic converters required for air quality regulations eliminate over 99% of carbon monoxide produced.[1

From lost all hope

Whilst it is possible to achieve death using this method, it does generally require older cars. The method is susceptible to a number of things that can go wrong, and for this reason it is no longer cited as an effective method of committing suicide, and certainly not in places like the US, UK and Australia where car emissions are more tightly controlled.