How do you replace oxygen sensor on 1988 Honda CRX?

To replace the oxygen sensor on a 1988 Honda CRX, first, locate the sensor, which is usually found on the exhaust manifold. Disconnect the negative battery terminal, then unplug the old oxygen sensor's electrical connector. Use a wrench or oxygen sensor socket to unscrew the old sensor, and then install the new sensor by threading it into the exhaust manifold and tightening it securely. Reconnect the electrical connector and the negative battery terminal before starting the engine to test the installation.