In 1981, two-way catalytic converters were rendered obsolete by three-way converters that also reduce oxides of nitrogen (NOx); however, two-way converters are still used for lean-burn engines.n vehicles with OBD II, a second oxygen sensor is fitted after the catalytic converter to monitor the O 2 levels. The O 2 levels are monitored to see the efficiency of the burn process. The on-board computer makes comparisons between the readings of the two sensors.
Prosper, Texas. Homefacts City Report. Prosper is located in Collin County, TX. The population is 9,960, making Prosper the 6th largest city in Collin County. There are 8 public schools in Prosper with an average Homefacts rating of A+. The total crime rate for Prosper is very low, and there are 4 registered sex offenders residing in the city.
Scurry County was one of forty-six prohibition, or entirely dry, counties in the state of Texas, until a 2006 election approved the sale of beer and wine in Snyder, and a 2008 election approved the sale of liquor by the drink throughout the county. Scurry County comprises the Snyder, TX Micropolitan Statistical Area.