HC CO NO2

[Dibbons]

My '72 Satellite Sebring Plus has the remnants of a sticker/decal on the inside of the driver's side rear seat window. The only thing I caN read is three lines of text, each line begins with either HC, CO, NO2. This vehicle was sold new in Fresno, California. I was just wondering what the complete sticker would have stated. Does anyone have one still intact that we can read? Thank you.

 

[PurpleBeeper]

That is some sort of emission test sticker. HC = hydrocarbons (un-burned fuel), CO = carbon monoxide & NO2 = is a weird way of saying "oxides of nitrogen"

 

[69L48Z27]

NO2 is diesel emissions.