HomeEmission Control > SensorsStandard Ignition AS131 Manifold Absolute Pressure Sensor
Part #: AS131

Standard Ignition AS131 Manifold Absolute Pressure Sensor

35 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Mazda, 6, RX-8, 3, Protege, Protege5, 626, Millenia, and Miata
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Reliable Manifold Absolute Pressure Sensor for Mazda Vehicles

The Standard Ignition AS131 Manifold Absolute Pressure Sensor is designed to provide accurate engine load data for optimal performance. This sensor is compatible with various Mazda models, including the 3, 6, 626, Miata, Millenia, Protege, Protege5, and RX-8.

  • Direct replacement for OEM manifold absolute pressure sensor
  • Compatible with multiple Mazda models for precise fitment
  • Ensures accurate measurement of intake manifold pressure
  • Supports engine control unit in managing fuel injection and ignition timing
  • Durable construction for consistent performance under varying conditions

Product Details and Compatibility

The AS131 sensor from Standard Ignition is engineered to meet or exceed original equipment specifications. It accurately measures the absolute pressure inside the intake manifold, which is critical for the engine control unit (ECU) to calculate air density and adjust fuel delivery accordingly. This sensor is compatible with a range of Mazda vehicles, including the Mazda 3, Mazda 6, 626, Miata, Millenia, Protege, Protege5, and RX-8 models. Using the correct manifold absolute pressure sensor helps maintain engine efficiency and emissions control.

Common Applications and Problem Resolution

  • Helps resolve engine stalling or rough idling caused by faulty pressure readings
  • Addresses poor fuel economy due to incorrect air-fuel mixture
  • Reduces engine hesitation or lack of power during acceleration
  • Prevents check engine light triggers related to manifold pressure sensor faults
  • Supports emission control by providing accurate sensor data to the ECU

Installation Notes and Tips

Installation of the Standard Ignition AS131 sensor requires basic mechanical skills and proper tools. Before installation, ensure the engine is cool and disconnect the battery to avoid electrical issues. Remove the old sensor carefully to prevent damage to the intake manifold or wiring harness. When installing the new sensor, verify the connector is securely attached and free of corrosion. After installation, clear any diagnostic trouble codes and perform a test drive to confirm proper operation.

Quality Assurance and Warranty Information

Standard Ignition manufactures the AS131 sensor to meet strict quality standards, ensuring reliable performance and durability. While specific warranty details may vary, Standard Ignition typically offers a limited warranty covering defects in materials and workmanship. This provides confidence in the sensor’s longevity and function when installed in compatible Mazda vehicles.

BrandStandard Ignition
Part NumberAS131
Connector GenderFemale
Connector TypePlug In
Terminal GenderMale
Terminal TypePin

This part fits 35 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2007Mazda63.0LV6N/A
2007MazdaRX-81.3LR2N/A
2006Mazda63.0LV6N/A
2006MazdaRX-81.3LR2N/A
2005Mazda3N/AFront
2005Mazda63.0LV6N/A
2005MazdaRX-81.3LR2N/A
2004Mazda3N/AFront
2004Mazda63.0LV6N/A
2004MazdaRX-81.3LR2N/A
2003Mazda63.0LV6N/A
2003MazdaProtegeN/A
2003MazdaProtege5N/A
2002Mazda6262.5LV6N/AFitment Note: Without Bracket
2002Mazda6262.0LL4N/AFitment Note: Without Bracket
2002MazdaMillenia2.5LV6N/A
2002MazdaProtegeN/A
2002MazdaProtege5N/A
2001Mazda6262.5LV6N/AFitment Note: Without Bracket
2001Mazda6262.0LL4N/AFitment Note: Without Bracket
2001MazdaMillenia2.5LV6N/A
2001MazdaProtegeN/A
2000Mazda6262.5LV6N/AFitment Note: Without Bracket
2000Mazda6262.0LL4N/AFitment Note: Without Bracket
2000MazdaMillenia2.5LV6N/A
2000MazdaProtegeN/A
1999Mazda6262.0LL4N/AFitment Note: Without Bracket
1999Mazda6262.5LV6N/AFitment Note: Without Bracket
1999MazdaMillenia2.5LV6N/A
1999MazdaProtegeN/A
1998Mazda6262.0LL4N/AFitment Note: Without Bracket
1998Mazda6262.5LV6N/AFitment Note: Without Bracket
1998MazdaMillenia2.5LV6N/A
1997MazdaMillenia2.5LV6N/A
1990MazdaMiataN/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

145-749158-0556180812-16467213-17282MAP03455S248472-160774282E1T10371EC1711KL4718211MAPB10010MP130PS10071V32-72-0099

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.