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Nobody should be debugging code by hand either but when all the tools fail, its time to get your hands dirty.

No, when all the tools fail, they buy back the car or you lemon law it. Story over. It would not happen, does not happen, cannot happen.

I agree with the below poster, this reeks, no one is doing o-scope level debugging on a production vehicle. It's what someone would say that has no idea how cars are designed, built, and serviced in reality.

Snap-On sells automotive scopes.

https://www.snapon.com/EN/US/Diagnostics/Products/TRITON-D10

That *scan tool* does not do what you think it does, you're not going to well acksually your way out of this.

Lab Scope / Meter 2-channel Bandwidth 3MHz Sample Rate: Up to 6 million samples/sec Scale range 0-100mV to 0-400V Sweep rate 50 microseconds to 20 seconds (5 min in GMM mode)

It’s slow but it’s an oscilloscope. It graphs electrical measurements over time. They sold CRT scopes on carts for years and years.

Maybe you should move the goalposts and demand FFT or higher bandwidth.

Yeah, GP is way off base on that point.

hn is full of people larping just like reddit