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.

Diagnostic Check Number 1 (O2 Sensor)

If O2 sensor change exceeds 20 seconds while in feedback range, turn ignition switch from "OFF" position to "ON" position. If trouble code is indicated, computer is normal. If trouble code is not indicated, computer operation is not normal. Check wire harness and connector, O2 sensor and ECU.