as you know ive been having hesitation and high fuel consumption on my X12XE 1.2 16v corsa. Its been doing only 230 miles to a full tank.
However recently, i unplugged the o2 sensor and left it unplugged, engine management light came on, but car was running so much better! Also can now get 280 miles to a tank!!??
So i bought a brand new o2 sensor thinking that my old one was duff, however the new one has removed the engine management light and fault code, but its doing exactly the same again and fuel consumption is ****e again