"In fact, one of the very first internal combustion engines ran on a mixture of hydrogen and oxygen—and featured an electric spark ignition mechanism"
https://www.cummins.com/news/2022/01/26/how-do-hydrogen-engines-work
"In an internal combustion engine, the electronic ignition system is used to ignite air-fuel. Basically, this provides heat in form of spark for ignition. This system works inside the engine for creating a spark in the spark plug."
https://themechanicalengineering.com/electronic-ignition-system/
How The Internal Combustion Ignition System Works
https://www.motortrend.com/features/1602-how-the-internal-combustion-ignition-system-works/
"With the vast use of an ignition system in spark-ignition internal combustion engines, electronic types fall to be one. The spark is responsible for producing flame and in automotive where the chemical energy (air-fuel mixture) is converted into mechanical energy (crankshaft rotation). The spark is essential for this to be achieved."
https://studentlesson.com/electronic-ignition-system-definition-function-working-components/
"Because hydrogen is different from gas, the sorts of air-fuel ratios, compression ratios, timing and ignition energies you can run are wildly different from what you'd normally see. For example, you can run an air-fuel ratio as lean as 180:1, and a much higher compression ratio since hydrogen has a higher octane rating."
https://www.roadandtrack.com/new-cars/car-technology/a25631560/how-hydrogen-engines-work/
"Hydrogen and Oxygen gas spilt from water, we can "Hydroxy gas"
the molecules are bonded together positively in a ortho hydrogen state,
****2.4x's to 4x's more powerful than the normal "para hydrogen"***"
http://waterpoweredcar.com/
"“The biggest mistake we see people making involving their ignition system is not understanding timing correctly,” Ryden told us."
https://www.chevyhardcore.com/tech-stories/the-basic-ins-and-outs-of-an-msd-ignition-system/