2008 Chevrolet Cobalt "catalyst oxygen sensor ready" Questions

oxygen sensor diagnostic may not run. Idle. The engine must be run for two and a half minutes with the air conditioner on and rear defroster on. The more electrical load you can apply the better. This

...catalyst not ready 2- heated catayst not applicable 3- evaborative system not ready 4- secondary air not ready 5 Oxygen sensor not ready 6- oxygen sensor heater not ready > I tried to replace the ...

oxygen sensor, erg, and catalyst readiness monitors wont reset possible oxygen sensor clogged/clogged egr port should solve catatlyst readiness .

...Catalyst Not Ready Oxygen Sensor Not Ready I put 375 highway miles on the car, hopping this will pass it. Again, TOO LITTLE INFO!!! could be a non operating oxygen sensor heating, check connector and ...

catalyst, oxygen sensor, heated oxygen sensor, egr system Buy a cheap code reader and always scan your car BEFORE taking it in for inspection SO you never have to pay for a retest after failing again!

...catalyst not ready evaporative system not ready oxygen sensor heater not ready. How reset to pass emissions test? Sounds like you have a bad O2 sensor. This brief vlog explains clearly what the issue ...

...catalyst is flooded with oxygen. Typical values from the downstream oxygen sensor(s) are between 550- 900mV at idle. While the downstream oxygen sensor is used to monitor catalyst efficiency, the ...

...catalyst is able to oxidize hydrocarbons (unburnt fuel) at about 600 degrees. The air injection pump routes fresh air straight to thecat to aid in speeding up the light off time. once there, the cat ...

Catalyst,Evap System, Oxygen Sensor, Egr Syst These monitors were not ready, and caused me to fail inspection. What should I do? Drive it some more. Has the battery been disconnected/replaced recently

Catalyst Efficiency comes from the switching comparison of the front & rear oxygen sensors being out of range Until you resolve the rear O2 Sensor Heater Issue you won't know if the cat is good or