My toyota avensis fuel consumption too much

My headlights and high beams are not working. Strangely when I hold in the high beam switch to the flash position, all my lights work again.

I was driving my car when suddenly the engine warning light appeared on the dashboard. There was no noticeable change in the engine's sound or performance, but the car started taking longer to start w… 

The fuel consumption is higher that normal.

chech engine high consumption of gas

Fuel consumption is too high