I have A Mazda premacy sport 2004.

The problem I have is that, the car initially struggled to start, it had lost approx £20 within a three days.. Turned out the injector valve seals were worn in 2 injectors hence I had these replaced. Car was initially fine,

Now the car starts fine, there is no loss of power however there is a putt putt sound coming from car,z almost as if it was struggling to breath. There is a slight judder to the engine and the gear stick visibly vibrates . There is also a fair bit of smoke from the exhaust. Engine management light is also on, had the fault read by a friend and the code p1014.

Any ideas as to what could be going on with this car?

 

Showing an error the refers to week mixture, something like 1017??? . I am getting to the point now where I feel the need to kick the car up and Down the street!