KE-Jetronic fuel injection rebound plate, diaphragms, sensor plate, control plunger and sensor-plate potentiometer can be actuated the idle-mixture adjusting screw can be adjusted. Thus, it can be shown how the control plunger is lifted description ordernumber 177 see also: L-Jetronic fuel injection air flow in a variable turbocharger distributor pump (adjusting the injection timing advance) two-spring injection-nozzle with needle-displacement sensor