Functional diagram of the fuel injection system «L-Jetronic»:
19 - fuse number 6; 20 - ignition coil; 24 - starter; 30 - starter enable relay; 71 - fuel pump; 90 - relay block; 91 - additional resistors; 97 - nozzles; 98 - temperature sensor; 99 is the main connection point with «weight» (front manifold mounting lug); 100 - connector of the electronic control unit; 101 - cold engine start relay; 102 - throttle switch; 103 - thermal time relay; 104 - air flow meter; 105 - starting nozzle.