Actually, it is. Most of those systems don't need electronic interface period. Braking is a very simple system, the anti lock brake system is what would be affected. No big deal. The fuel, transmission, and ignition are all tied together in a common system, remove the electronics for one, and you remove them for all. You have no clue what you are talking about.
It would take a day to remove all electronic interference from the braking system, and about a week, to a week and a half for the rest. A simple electric fuel pump can do the job if you can't find a mechanical one, but there are no chips involved, it is merely a motor.
Nonsense.
You'd need to
replace the entire fuel injection system as computer controlled models can't operate solely on mechanical motion in the engine. They use sensors to trigger the computer controlled injection,
not mechanical motion. Eliminate the control chip....and the sensors don't work. And there's no mechanical connection between the fuel injection system and the rest of the engine that could be used to trigger a computer controlled fuel injection system. And that's just sensor triggering.
The entire fuel injection system would be a brick. As again, it uses the control chip to initiate a fuel injection cycle with each reset piston. Without working sensors,, the chip wouldn't know when to trigger. Without a chip, there'd be nothing to do the triggering.
And that's just the fuel injection system.
The flywheel controls in the transmission would need to be modified for virtually every automatic transmission made in the last 10 years.Which would require the entire disassembly of the automatic transmission, running into many of the same sensor issues, this time measuring torque. No working sensors, no chip to process the data or trigger gear changes....none of it would work without a huge rebuild. As the computer chip is what determines when the gear transitions occur.
And if someone at the airshow told you that disassembling and rebuilding a transmission is 'easy', they're completely full of shit.
Then there are the control by wire systems for steering. And the control by wire system for braking, both of which are computer controlled. You'd need to replace both with manual cables, rebuilding the breaking and steering control systems.
And it would work like shit without a complete replacement of the steering assembly and brakes.....as you're replacing computer controlled hydrolic pressure with whatever you can manage pushing down on the pedal.
The only part of this that would plausibly 'easy' would be electrical control systems.....
assuming you didn't want something like a working dash board, speedometer, tail or running lights. But you could connect the distributor and alternator to the battery easily enough. 2 days tops to redo the car's electrical system.
OR!
You can spend 15 minutes physically disconnecting the wireless hardware in an EV.....and obliterate the entire silly conspiracy.