What are the indications of a failed O2 sensor??
Captain
What are the indications of a failed O2 sensor??
Captain
The Check Engine warning light will be on. Your engine will function properly, but you won't pass that smog check...
If the Check Engine light is on, go to AutoZone and have them read the failure code stored in your OBD system.
--Dan
Check engine light on.
MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.