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Home >> Plymouth >> 1986 >> Conquest 2.6 N >> Repair and Diagnosis >> Engine Performance >> System >> ECI System >> Testing >> ECI Inspection Test >> Diagnostic Check Number 1 (O2 Sensor)
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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.