Checking the O2 Sensor

Author: Bill Gregory [sansho@rennlist.com]

Date: August 1, 2002


The oxygen sensor must first be heated up (approx 572 degrees F) to begin working, and 964 O2 sensors have a heating circuit to bring them up to working temperatures fairly quickly. The voltage output from  the sensor will be between 0.1 and 0.9 volts, d.c.