My seat ibiza over fuels at idle and i've changed the lamda sensor and coolant sensor!?
Answers:
hi check the air inlet hoses for splits.
Nice, I don't even know what the heck your saying either. Get that ebonics fixed.
First have in mind that lately the mass air flow sensors has been failing, mainly in VAG Group cars, and that malfunction (I don't know why) isn´t detected by the control unit (I think out of values malfunction).
Unfortunately, the only way for checking this malfunction is trying with a new sensor, if the malfunction persists, it's time to begin thinking in a new control unit.
does the engine hunt at all?
if it does look for the idle air control valve, they have a habit of sticking with fuel and dust. good thing is thats its dead easy to fix and wont cost more than a can of carb cleaner
clean it out, let it dry, (all of 15 seconds) and then replace. could well be job done
p.s. the idle air control valve is attached to the inlet manifold before the injectors
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