Ошибка P0170: топливная коррекция банк 1

With closed-loop control the engine module corrects the injected fuel using the oxygen sensor: short-term fuel trim reacts within fractions of a second, long-term trim stores a learned base correction per load and speed range. Positive values mean fuel is being added because the mixture was lean, negative values mean fuel is being removed; around ±10 % is normal. P0170 is the older, direction-neutral code for 'mixture adaptation of bank 1 out of range'; whether lean or rich has to be read from the trim values. Users are Mercedes-Benz petrol engines, which often set P0170/P0173 instead of P0171–P0175 – a Mercedes-Benz magazine for independent workshops reports that cleaning or replacing the air flow sensor most often cures it – and Ford's 6.7 litre diesel, where it flags a fuel quantity error above 15 % in either direction from its fuel mass observer. GM and Ford petrol engines do not use it. Two trips.