[LeifCarrotson]

You can't build a test bench to rebuild current OEM's electronic common rail injector systems that rely on expensive proprietary computer equipment, but there's no reason that has to be the case.

With a $20 CAN transceiver, documentation and/or config files from the manufacturer, and a bit of Python or something, you could absolutely bench test those electronic injectors. You might even be able to pick your injection events and adjust the metering, supporting the equipment as it ages. I'd love to see Ursa Ag put in a Megasquirt engine controller [1] or Proteus [2] or similar. You can run TunerStudio on a Raspberry Pi and show it on a touchscreen on the dash.

It's possible to build user-friendly, inexpensive and open engine and vehicle controls. You don't need to have zero electronics to not have locked-down proprietary electronics, you just need to build the electronics in the right way.

[1] https://diyautotune.com/products/ms3357-c?_pos=2&_fid=69f494...

[2] https://rusefi.com/index.html#proteus

[jcgrillo]

Controls are one thing, but there's also the problem of generating 20k psi of oil pressure and some thousands of pounds of continuous common rail fuel pressure to actuate the injector. Compared with older MW, M, P, etc. styles it's a whole different beast. Also, we're talking past each other a little--I'm talking about diesel injectors, you're talking about otto cycle equipment ;)