ELECTRONIC FUEL INJECTION Throttle-valve Fig.4-29 servomotor Control unit Electronic throttle sends accelerator signal to Motronic control unit DC motor throttle modified by engine temperature idle rpm, and Accelerator sensor maximumFig. 4-29. Electronic throttle sends accelerator signal to Motronic control unit . DC motor moves throttle valve, modified by engine temperature, idle rpm, and maximum rpm ELECTRONIC FUEL INJECTION