When does the O2 sensor go off on a car?
When does the O2 sensor go off on a car? This is a cycling process that needs to be completed and will typically go off after you have driven the vehicle for several days. Once the cycle has been completed, your vehicle's computer will think the O2 sensor information being provided is legitimate and you will be free to tune the engine as you wish. Is the O2 sensor heater on my Silverado Sierra? Recently purchased a 2001 Silverado in private sale. The previous owner had recently replaced fuel pump and had an exhaust leak fixed (included all maintenance records...