October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.
HO2S Xcounts
Scan Tool Displays
0-255. Indicates the number of times the
HO2S 1 signal has crossed the
450 mV bias voltage during a
1 second interval. A HO2S 1 signal that almost never crosses the bias voltage could indicate a fuel trim problem, a faulty HO2S 1 circuit, or a faulty HO2S 1.