electronic injection and ignition control assembly for internal combustion engines; Electronic motor vehicle ignition tuning kits comprised of an electronic control unit that monitors engine performances and delivers re-calculated sensor values to the original engine control unit to increase engine performance; electronic turbo pressure control assembly; water level indicators; Ballasts for lamps; lighting ballasts; Power adaptors; pressure gauges; electrical wires; speedometers; electric coils; holders for electric coils; electronic speed controllers; engine and oil temperature measuring devices; vehicle engine parts, namely, thermostats; Automotive measuring instruments, namely, water temperature gauges, air fuel/ratio gauges, boost gauges, vacuum gauges and exhaust gas temperature gauges; Gasoline gauges; speed indicators; integrated circuits; electric connectors; sequential fully programmable Electronic Control Unit (ECU); Electronic control systems for engines; electronic control systems for machines; Electronic control unit (ECU) comprised of an electronic controller for controlling the selective catalytic reduction (SCR) system of land vehicles; display and conditioner for broadband O2 (oxygen) sensor; data acquisition system with integrated broadband O2 display and conditioner; pulse control module in various stages; low impedance injector drive units; high power capacitor discharge ignition (CDI) ignition system assembly; Automotive measuring instruments, namely, water temperature gauges, air fuel/ratio gauges, boost gauges, vacuum gauges and exhaust gas temperature gauges