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Claude Code and Codex reverse engineered my 1994 Jeep's ECU over a $3 Arduino [video]

https://www.youtube.com/watch?v=WPj3aQ-xxpI
https://www.youtube.com/watch?v=WPj3aQ-xxpI&t=275s

> Claude suggested that it would run the fuel pump on its own. Um and I said, "Hey, if you can do that, why not? I don't think you can do that." And it started priming the fuel rail and it kept priming it and kept priming it. The fuel pump was on for about 10 seconds and I started to freak out uh and requested it to stop because that was the first time that Claude had actually done something inside of the computer to have a change.

Although we've seen this play out with handing cloud keys to Claude and it just going off on its own, seeing it poke around and make physical, real-world changes in its clumsy, cavalier way is both awesome and terrifying.

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> and requested it to stop

finnicking... pondering... clauding..

529 please try again later

Good example of why you have AI build tools for you to take risky actions, rather than have it take those actions on its own.
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We are used to Claude refusing to reverse engineer a lot of stuff. But, we are not used to Claude refusing to stop while reverse engineering something. That would be truly terrifying. You can't win - you cut the connection, you risk bricking the device, you let it continue, you're looking at Terminator, perhaps.
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This is how the Cylons win.
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LLMs end up changing the consumer market not the way big corporations would like to. It is impressive to see that we'll be able to give ownership back to the customer, or enable others to do so. Very nice demonstration.
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The really interesting part to me is how he ends up by saying "I recommend you feed this repo into the agent and just have it help you set it up, it's super easy ..."

The average person is likely to feel overwhelmed by this, which I think is what is likely going to shape the new economy gig of "AI engineers". Those that aren't overwhelmed by it and that may not only enjoy doing this but also potentially figure out a way to scale operations that allow doing these kinds of DYI reverse engineer hack jobs.

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Would love to see this being used to add keys to cars. A lot of cars now have tablets and screens that could be used to do this, but for some reason (money) I have to take my VW to the dealer...

I think the whole market for aftermarket keys could be completely eradicated with good software UX (and low pricing).

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Fascinating, but if he had low pressure on the rail that would point to a clog or possibly a pump issue, right? Wasn’t really clear whether the lean condition was due to the map or a mechanical issue.

I have a dirtbike and experienced some stuttering and stumbling under load after getting hot. Used Claude to help troubleshoot, as the plug was white and it was real lean. Replaced the pump (a 300$ module) and saved a ton of money and annoyance having a shop deal with it. 2000mi later zero issues. Absolutely game-changing. I use a dumb aftermarket fuel controller to add fuel under certain conditions, but would love to try and tune it myself some day.

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can someone explain the root cause of the smog test failure to me ? it sounds like the car was using a California smog test-specific fuel map at the speeds of the test. Wouldn't that make it pass the test, not fail it ?

very cool project anyway.

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You can adjust the mixing ratio of fuel and air in a way so that the exhaust has reduced emissions. This will reduce performance of the car but allows the exhaust to pass the emission tests.
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Spent so many wasted days reverse-engineering older systems to get them tto work again or prevent eWaste. In a perfect world all CAD files should become open source when the product becomes EOL
The tech is impressive but the animation in the video are too, anyone knows what was used to generate them?
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Claude reverse engineered his car, drew the animations, and wrote the script for video. Incredibly weird meat proxy moment.
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Manufacturers are going to start cryptographically locking everything down rather than relying on the time and skill needed to do reverse engineering.
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Love seeing unique youtube projects on here for a change!
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I enjoyed watching this a couple days ago -- super cool as someone also into slightly older vehicles.
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