Injection timing device, in-line pump Pulling the buttons draws the flyweights outwards against the spring force and causes the excentric to readjust the out- put in the direction ”advance injection” eccentric. description ordernumber 1119 see also: Ecotronic system (carburetor) air-mass sensor with hot film nozzle holder set with 4 injection nozzles Electric turbocharger (e-booster)