Smoke, High fuel consumption, Why? on 2006 Hyundai Santa Fe

Check engine indicator flashes continuously
Diesel high Consumption 12.4 l/100Km
Some times idles with RPM low and consumes lots of smoke if fuel pedal hit

Asked by for the 2006 Hyundai Santa Fe
3 answers 3 comments
scan test for codes
I did that. scanner shows only water in feul tank. I have drained tank and put new diesel. but no effect. also drained the fuel filter.
White smoke or black? White smoke means engine rings worn. Black injectors need service and while ur at it calibrate injector pump
Black . the car smels un burnt diesel fume. I have added injector cleaner and still trying. The mechanic says its the catallytic inverter, dealers mechanic assumes its the particulate filter. Is there any site shows in steps how to check injectors and service them?
As far as I know injectors have to be calibrated. It is also a good idea to have the injector pump calibrated at the same time. This can only be done using an engineering workshop with the correct equipment.
If the vehicle is lacking power and feels like it has a governor then the catalytic converters are clogged.