Hi there, I have an 02 Galant (only 98,000 Kms), runs very well, all stock, but only getting 6.7 Kms / litre just plain commuting. I did happen to smell exhaust when unloading boot this morning with engine running, and it smelt strange, not quite rotten eggs, but a little stinky, or different to "normal" exhaust gas smell I thought. Is it possibly a faulty o2 sensor? and is there a way to test before replacement? Is anyone still selling them, in case I can confirm its faulty? Just hoping to tap into the group's experience here - thanks.