Spectra MP129 Manifold Absolute Pressure Sensor

Overview of Spectra MP129 Manifold Absolute Pressure Sensor

The Spectra MP129 Manifold Absolute Pressure Sensor is designed for precise engine management in select Nissan and INFINITI vehicles. This sensor helps maintain optimal air-fuel mixture by accurately measuring manifold pressure, ensuring efficient engine performance.

• Direct replacement for factory MAP sensors in Nissan and INFINITI models
• Compatible with Nissan Altima, Frontier, G20, Maxima, Pathfinder, Q45, QX4, and Xterra
• Part number MP129 for easy identification and fitment
• Measures manifold absolute pressure to support engine control unit (ECU) functions
• Durable construction for reliable operation under various driving conditions

Detailed Product Description

The Spectra MP129 Manifold Absolute Pressure Sensor is engineered to provide accurate pressure readings from the intake manifold, which is critical for the engine control unit to calculate air density and adjust fuel injection accordingly. This sensor is compatible with multiple Nissan and INFINITI models, including the Altima, Frontier, G20, Maxima, Pathfinder, Q45, QX4, and Xterra. Using the correct MAP sensor like the MP129 ensures that your vehicle’s engine runs smoothly and efficiently by maintaining proper air-fuel ratios and preventing issues related to incorrect pressure readings.

Common Applications and Issues Addressed

• Helps resolve rough idling caused by incorrect manifold pressure readings
• Reduces engine stalling related to faulty MAP sensor signals
• Improves fuel economy by providing accurate data for fuel injection timing
• Prevents check engine light triggers associated with emission control sensors
• Supports stable acceleration and engine performance in Nissan and INFINITI vehicles

Installation Notes and Tips

• Ensure the vehicle is turned off and cooled before installation
• Locate the existing MAP sensor on the intake manifold for removal
• Disconnect the electrical connector carefully to avoid damage
• Install the Spectra MP129 sensor by securing it firmly in place
• Reconnect the electrical connector and verify sensor operation with a diagnostic tool

Quality Assurance and Warranty

Manufactured to meet OEM specifications, the Spectra MP129 Manifold Absolute Pressure Sensor undergoes rigorous quality control to ensure reliable performance. While specific warranty details may vary, Spectra typically offers coverage against defects in materials and workmanship. Using this sensor helps maintain your vehicle’s emission control system integrity and engine management accuracy.