Mitsubishi Mitsubishi Eclipse 2006-2012 Emissions & Sensors Specifications

The emissions sensors for the 2006-2012 Mitsubishi Eclipse are designed to be compatible with all trim levels, including the GS, GT, and Spyder models. These sensors adhere to OEM specifications and are compatible with both manual and automatic transmissions. However, it is recommended to verify compatibility with your specific vehicle identification number (VIN) to ensure proper fitment and functionality.

Regular maintenance of the emissions sensors includes inspecting them during routine service intervals, checking for corrosion or damage, and ensuring proper electrical connections. It is advised to clean the sensors periodically to prevent buildup of contaminants. Replace the sensors every 60,000-80,000 miles or as indicated by diagnostic trouble codes (DTCs) to maintain optimal engine performance and emissions compliance.

To replace the emissions sensors, first, locate the sensors (typically near the exhaust manifold or catalytic converter). Disconnect the electrical connector and use an oxygen sensor socket to remove the old sensor. Apply anti-seize compound to the threads of the new sensor and install it by hand to avoid cross-threading. Tighten to the manufacturer's torque specification, reconnect the electrical connector, and clear any stored DTCs using an OBD-II scanner.

If the emissions sensor triggers a check engine light, first use an OBD-II scanner to retrieve the specific DTC. Common codes include P0135 (O2 sensor heater circuit malfunction) or P0420 (catalyst system efficiency below threshold). Inspect the sensor for damage, check wiring for continuity, and ensure proper voltage supply. If the sensor is faulty, replace it and clear the codes. If the issue persists, inspect the exhaust system for leaks or catalytic converter problems.

To optimize emissions sensor performance, use high-quality fuel and ensure the engine is properly tuned. Avoid using silicone-based sealants near the exhaust system, as they can contaminate the sensors. Regularly inspect and clean the sensors to prevent buildup of carbon deposits. Additionally, ensure the catalytic converter is functioning correctly, as a failing converter can cause premature sensor failure and reduced engine efficiency.