sorry guys didnt mean to sound argumentive last post was short due to being a little busy, i understood the problem (and i may be wrong so correct me if i am ) as being that the software update would rectify the p0420 if the post sensor was only showing minor change say instead of being a steady 0.8 it was coming down to 0.5 or similiar or maybe only showing the odd cross from rich/lean . i took allen saying switching from 0.2 to 0.8 as meaning it was switching like a pre cat sensor would once per second or so (which my case was) to which wouldnt a software update have to widen the perimeters to a point where the post cat sensor was practically taken out of the equision as i said correct me if im all wrong as this would be very helpful as i see a few p0420's on various cars that have past emissions tests i wonder what action allen has taken and how he got on thanks lee |
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