Ignition problems with symbol 206

Good night ... I have ignition problems with my symbol. This happened after the limpeity of injectors at 40,000 km. If I leave it parked for more than 1 hour, I must try to enforce it up to 4 opportunities. If they are only minute, turn on immediately ... It seems that the injectors will stay fasin ... is this possible ???. The captor coil (in Avioncito) and is perfect.
Thank you:)