Spectra MP146 Manifold Absolute Pressure Sensor

Brand Spectra MP146
Fits Nissan and INFINITI · 4 vehicles

OE-spec fit, form, and function. Designed to meet or exceed original equipment standards.

Manifold absolute pressure sensor. Measures intake manifold pressure for precise engine management.

Cross-references Eastern Catalytic 50507, Standard Ignition AS83 and 5S2471 for the same application. See all 9.

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Spectra MP146 Manifold Absolute Pressure Sensor

The Spectra MP146 manifold absolute pressure sensor is built for direct replacement service on select Nissan and INFINITI applications. It is engineered to meet or exceed OE specifications for fit, form, and function, helping restore accurate intake manifold pressure signal output.

Key Features

  • Manifold absolute pressure sensor for emission control system service
  • OE-style fit, form, and function for straightforward replacement
  • Direct application coverage for 1995-1997 Nissan Maxima and 1996 INFINITI I30
  • Cross-references Standard Ignition AS83 for the same application
  • Part number MP146 for catalog and service identification

Application Details

Compatible with 1995-1997 Nissan Maxima and 1996 INFINITI I30. This sensor is used to measure manifold pressure so the engine control system can calculate load and adjust fuel and ignition strategy. The Spectra MP146 is a practical replacement for vehicles showing drivability or emissions-related sensor faults, and MP146 is the part number to verify during ordering.

What It Helps Address

  • Check engine light related to manifold pressure sensor performance
  • Rough idle caused by incorrect manifold pressure input
  • Hesitation or poor throttle response from inaccurate load data
  • Fuel mixture concerns tied to faulty sensor readings
  • Emissions test failures linked to sensor signal issues

Installation Notes

Confirm the connector style, mounting location, and engine application before installation. Compare the old sensor to the new unit and verify the vehicle listing for your exact year and model. For fitment-based searches, this part is commonly referenced as a manifold absolute pressure sensor for 1995-1997 Nissan Maxima and 1996 INFINITI I30.

Quality Assurance

Spectra states that this replacement sensor is designed to meet or exceed OE specifications for fit, form, and function. This part cross-references Standard Ignition AS83 for the same application.

This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
1997NissanMaxima3.0LV6N/A—
1996INFINITII303.0LV6N/A—
1996NissanMaxima3.0LV6N/A—
1995NissanMaxima3.0LV6N/A—
Directly replaces or cross-references 9 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Eastern Catalytic — 50507Standard Ignition — AS835S2471216858158132321321862236554U15AS83TSU4215