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: exhaust-gas turbocharger delivery valves solenoid valve of a radial-piston distributor pump rotary pump