i have an 85, it has burned oil since day one. but now it really runs bad, and i change my plugs all the time, you would think they would be black and wet, but they are white and really lean looking? almost like they are getting water on them? and now it won't idle at all! when it warms up it will idle some times but at like 450, it used to idle at a grand to 850. now it is giving me 4 codes? 2-4-7-8? what do the codes mean and which sensors do i replace?... any info would be great.
james
