Infiniti G35 2007-2008 Emissions & Sensors Specifications

The 2007-2008 Infiniti G35 emissions sensors, including the oxygen sensors, are designed to monitor exhaust gases and ensure compliance with emissions standards. These sensors are compatible with the VQ35HR engine and operate within a voltage range of 0.1V to 0.9V. They are designed to withstand high temperatures and provide accurate readings for optimal engine performance and emissions control.

Regular maintenance for the emissions sensors includes inspecting them every 30,000 miles for signs of wear or contamination. Ensure the sensors are free from oil, coolant, or carbon buildup. Replace the sensors every 60,000 to 90,000 miles or as recommended by the manufacturer. Always use OEM or equivalent sensors to maintain proper functionality and emissions compliance.

To replace the emissions sensors, first, locate the sensors on the exhaust manifold and downstream of the 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, tightening to the specified torque. Reconnect the electrical connector and clear any error codes using an OBD-II scanner.

If the emissions sensors are malfunctioning, first check for error codes using an OBD-II scanner. Inspect the wiring and connectors for damage or corrosion. Test the sensor's voltage output to ensure it is within the specified range. If the sensor is faulty, replace it with a new one. Ensure the exhaust system is free from leaks, as these can cause inaccurate readings.

To optimize performance, ensure the engine is running efficiently by maintaining proper air-fuel ratios and using high-quality fuel. Regularly inspect and clean the sensors to prevent contamination. Avoid using aftermarket parts that may interfere with sensor readings. Keep the exhaust system in good condition to ensure accurate sensor data and optimal emissions control.