Will o2 sensor always throw a code should i replace??
#1
11-05-2013, 11:56 PM
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Will o2 sensor always throw a code should i replace??
Hey all was just wondering if a bad o2 sensor will always throw a code or can they go out without knowing . Just wondering if I should replace them but there's no check engine light on and hook it up to code reader and there's no DTCs just wondering cause having a hell of a time passing smog any help would be great thank you
#2
11-06-2013, 12:20 AM
Veteran
When an 02 sensor gets old they can get lazy and not read properly or as fast as they should. This wouldn`t necessarily throw a code but it can effect how your truck runs, power and gas mileage.
If your truck has 180.000 miles on it as you said in your other thread and the 02 sensors are original, they really need to be replaced.
If your truck has 180.000 miles on it as you said in your other thread and the 02 sensors are original, they really need to be replaced.
#3
11-06-2013, 02:27 AM
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#5
11-06-2013, 11:18 AM
When an 02 sensor gets old they can get lazy and not read properly or as fast as they should. This wouldn`t necessarily throw a code but it can effect how your truck runs, power and gas mileage.
If your truck has 180.000 miles on it as you said in your other thread and the 02 sensors are original, they really need to be replaced.
If your truck has 180.000 miles on it as you said in your other thread and the 02 sensors are original, they really need to be replaced.
Note that O2 sensors should be replaced approximately every 50-75K miles. If the O2 sensor(s) is/are not functioning properly then the performance of the emissions system is compromised, which can lead to failure of the catalytic converter and other engine related problems. The catalytic converter should outlast the vehicle and never need to be replaced *unless* replacement is warranted due to a manufacturing defect.
#6
11-08-2013, 10:34 AM
This. They degrade in performance over time.
Note that O2 sensors should be replaced approximately every 50-75K miles. If the O2 sensor(s) is/are not functioning properly then the performance of the emissions system is compromised, which can lead to failure of the catalytic converter and other engine related problems. The catalytic converter should outlast the vehicle and never need to be replaced *unless* replacement is warranted due to a manufacturing defect.
Note that O2 sensors should be replaced approximately every 50-75K miles. If the O2 sensor(s) is/are not functioning properly then the performance of the emissions system is compromised, which can lead to failure of the catalytic converter and other engine related problems. The catalytic converter should outlast the vehicle and never need to be replaced *unless* replacement is warranted due to a manufacturing defect.
