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.
Prosper was a small rural town on Preston Road (SH 289) in North Texas about 6 mi (9.7 km) north of Frisco, but in recent years â true to its name â it has prospered. The first settlers arrived in this area in 1846 for the black fertile prairie soil of North Texas where cotton was king..rosper is growing rapidly in terms of new home building (single-family houses in the $400,000 up to $4,000,000 range). In addition to a longtime retail filling station, in 2004 Prosper saw its second and third retail establishments arrive: a Sonic restaurant, and an Exxon On the Run station.