Please help in my Xsara Picasso

Hello good for this magnificent forum, you wanted to ask you a question about my Xsara Picasso that I have since 2003 is a 2,000 HDI 90 hp. A few week ago I observe that it consumes me more than normal in mixed goes to 9.5 l. At 100 km. And before the average was 7.5 l., I have called Citroen in my city and they have told me that before taking him to the workshop I have to do a test to reset the computer that I have done it I have circulated through the town and in 10 km. I have gone to 14 l. The average and the other was to fill the fuel deposit that does not fit more, make about 100 km. On the road and fill you up up and see what I spent, then they say that they would put the machine and check everything, I wanted to know if this has happened to some of you, I do not jump any failure of anything, the computer on board is not because it is seen that the fuel low Air and tomorrow I plan to change my oil, but I'm afraid to put it in the citroen because they have been very expensive and now I can not afford that luxury because I am unemployed if some of you can make me a hand, thank you and greetings.

Hi Karma I hope I can help you, I am a technician in automotive electronics. This problem that happens to you is of the fuel indicator so you understand each line has a value in liters because it is not well calibrated would have to recalibrate with the diagnosis machine called lexia q is from Citroen.
It does not indicate failure that is of calibration, you will have to visit the dealership (I'm sorry) for not being able to give you a more economical solution but it is configuration can only be done with a diagnostic machine. Greetings and Merry Christmas

Thank you, but what I say that because it consumes me so much, well what indicates the computer and the stripes that mark the fuel that are seen that they go down as if it were true that it is consuming me, thanks and greetings.

Hello, you have a test, do the full and see more than 100 or more or less than 3500 or 4000 laps per minute for more or less half an hour so that the escape and the catalytical are cleaned a little since these engines if the switchboard reads a wrong value can create this type of consumption, then cvountos km has the car, check the flow sensor and the hoses of the turbo can be Take wrong parameters you can also use a specific additive for injectors it may be that they are a bit dirty and they are not injecting proportionally to what is required, the power of the car as it goes.- Happy New Year.-

Thank you very much for helping me, look at the car has 85,000 km. You have asked me about the power of the car now that you tell me or I do not know if it will be psychological it seems that the car is a little heavier I see it seeing that many times when I advance I have to step on the bottom, and then these cars seem to me that they do not have turbo I am not sure, you find out that I fill it up up to it made a boat to clean the injectors (please tell me how it is called the product that I am called Highway put 100 km/h. In fourth (because my car does not mark the revolutions at least since I have him, he only marks the speed, if the brand tell me where I have to give it, please) you think that the dirty injectors can be, and then so that the Gasoi filter is used, that I do not know much of the topic forgive me for ignorance, thanks and greetings to all, I will try it, I will try it, happy year!