Catalyst / O2 Monitor

The catalyst and O2 monitor information are acquired and processed at the same time. Most vehicles need to be driven at highway speed (less than 50 mph (73km/h)) for a few minutes. Some vehicles run the monitor at idle in drive. If the vehicle is equipped with a manual transmission, using 4th gear may assist in meeting the monitor running criteria.

• Engine RPM between 1200 to 3000
• Engine temperature greater than 70°C (158°F)
• Engine run time greater than 92 seconds
• MAP between 10 - 20 kPa (7.5 - 15 Hg)
• Vehicle speed between 20 - 70 mph (29-103 km/h)