Clio RT 98, consume more benzina than before ... help please ..

My Clio RT of the year 98 consumes more benzina than before, now consumes about 10 km/liter, and even less. Change spark plugs..What can I do?

The first, has the fault light lit? It smells like gasoline without burn? like when do you open the tank cap?

If the car is just as well as before, it does not pour black smoke by the exhaust and you have an exaggerated consumption, it can be as simple as you have the tube of the chopped fuel return, so that the car pulls the gasoline to the ground while it is running.

An easy way to check it is to open the motor hood, start the car, and with the engine running, see if you lose somewhere, then lift it with the cat, and leave it while you get underneath to look at the pipes that go through the floor of the car, if you pray or drop gasoline you will see you quickly.

If the car does not have fuel leaks, such an exaggerated consumption is because the switchboard badly manages the engine because some engine sensor (eg, temperature or lambda probe) is defective, cheating the computer and shooting consumption.

To look at this, it is best to take it to a workshop to put the diagnosis to see if you have any fault code and incidentally test "in situ" all engine sensors just in case.

I hope it helps you what I have told you.

In the panel he does not show me any fault light, sometimes I feel smell of gasoline when I get off, someone tells me that the carburetor can be, I even change spark plugs, others tell me that the benzine filter in short, thanks for your answer, I will do and revive on what you told me, it is worth ... anything I warn you