Mercury specific DTC OBD2 code: P1131 Lack of Upstream Heated Oxygen Sensor Switch – Sensor Indicates Lean – Bank 1
Mercury specific DTC OBD2 code: P1115 Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage/IAT – B Circuit High Input
Mercury specific DTC OBD2 code: P1132 Lack of Upstream Heated Oxygen Sensor Switch – Sensor Indicates Rich – Bank 1