Unveiling the Secrets A Comprehensive Guide to Changing O2 Sensors

The engine computer is only reading from the sensor with the engine running so generally speaking you do not need to disconnect the battery when replacing it. The mechanic called me and said that it's standard to replace the front (upstream) O2 sensor when replacing the converter. Try disconnecting the battery. Wait 10 minutes, and connect it again. That should restart the computer. If the CEL is still on, then you just wasted your money! The new O2 sensors come with gaskets and install flush to the old plate. No welding required. To the original question: The only time I'd ... Yes the removal and replacement of O2 sensors is fairly easy provided you can get the car up high enough to work underneath it on the exhaust. There are two O2 sensor positions both are on the y-pipe - 1 going up towards the front header and the other going towards the rear. You need to crawl under ... Take the sensor out, replace it, reinstall the heat shield, put the fender liner back in, put the tire on. Total time to R&R the right side was 2 hours. Disconnect your battery negative terminal, jack your car up, support it with jack stands, disconnect the sensor wiring pigtail, and use something called a " ... Technically, you don't have to do anything to the the ECU after changing the O2 sensor. You can just drive it normally.The reason for the ... Try it cold. If you don't like it then run it a few minutes and try again. Exhaust components don't take long to warm up for the most part.