Greetings Aura17, unfortunately here in VZLA the technical service of many concessionaires is mediocre, for now I do not know any that honors the post -sales service, it seems lack of training of technical staff for the new vehicles, for example in the Fiat they could not change the rear position bulbs (I believe by they call it lunetes) of a point 2008, when installing it they went out ... The error used to Ask for 3w. Rayones when doing services, in short, nobody escapes, there is a lot of liveliness and poor quality. And unfortunately here it is repaired by discarding pieces, let's change this to see if it is fixed, I do not say that the technique is bad, only that it is something expensive if you have to buy them and it turns out that it is not ... the excess of gasoline is indicated that some sensor is working badly or left something wrong, for giving you an example, the MAF sensor can be good, but if there is an air fuger after the sensor this is not measured and it causes an erroneous operation, which can give a wrong operation. Low signal failure code, you have to review with details the hose and wiring connections and tell us.