long start at normal temperature Toyota Vigo

KIND REGARDS. Toyota Vigo 2006 310,000 km
The start when it is cold is fast and normal, but if it is heated at a normal temperature, the start that even plays 2 starts so that it garments, all the basic maintenance is done, what I notice is that in cold Scanner does not boot any code but I think it is the temperature sensor that gives order to the spark plugs so that the preheating time is short or long, saven which is or what are the sensors that control the preheating timer of the spark plugs, help thank you thank you