HomeEmission Control > SensorsStandard Ignition AS170 Manifold Absolute Pressure Sensor
Part #: AS170

Standard Ignition AS170 Manifold Absolute Pressure Sensor

⚙️ 5 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: INFINITI and Nissan, QX4 and Pathfinder
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Overview of Standard Ignition AS170 Manifold Absolute Pressure Sensor

The Standard Ignition AS170 Manifold Absolute Pressure Sensor is designed for precise engine management in select INFINITI and Nissan vehicles. This sensor plays a critical role in monitoring the intake manifold pressure to optimize fuel delivery and engine performance.

  • Compatible with INFINITI and Nissan Pathfinder and QX4 models
  • Measures manifold absolute pressure for accurate engine control
  • Direct replacement part number AS170 for easy identification
  • Ensures proper air-fuel mixture for efficient combustion
  • Engineered to meet OEM specifications for reliable operation

Detailed Product Description

The AS170 Manifold Absolute Pressure Sensor from Standard Ignition is engineered to provide accurate pressure readings from the intake manifold. This data is essential for the engine control unit (ECU) to calculate the correct air-fuel ratio, which affects engine efficiency, emissions, and overall drivability. Designed specifically for the INFINITI and Nissan Pathfinder and QX4 models, this sensor ensures compatibility and performance consistency. The part number AS170 corresponds directly to the OEM sensor, facilitating straightforward replacement without modification.

Common Applications and Issues Addressed

  • Helps resolve rough idling caused by incorrect manifold pressure readings
  • Addresses poor fuel economy due to inaccurate air-fuel mixture data
  • Reduces engine stalling related to faulty sensor input
  • Improves acceleration response by providing precise pressure measurements
  • Assists in lowering emissions by maintaining proper combustion control

Installation Notes and Tips

Installation of the Standard Ignition AS170 sensor should be performed with the engine off and cooled down. Locate the existing manifold absolute pressure sensor on the intake manifold, disconnect the electrical connector, and remove the mounting screws. Replace with the AS170 sensor, secure it properly, and reconnect the electrical plug. It is recommended to check for any diagnostic trouble codes after installation and clear them if necessary. Proper installation ensures accurate sensor readings and optimal engine performance.

Quality Assurance and Warranty

Standard Ignition manufactures the AS170 sensor to meet or exceed OEM standards, ensuring durability and reliable operation. While specific warranty details may vary, Standard Ignition typically offers coverage against defects in materials and workmanship. This sensor undergoes rigorous testing to confirm its functionality and fitment for INFINITI and Nissan Pathfinder and QX4 vehicles.

BrandStandard Ignition
Part NumberAS170
Connector GenderFemale
Connector TypePlug In
Terminal GenderMale
Terminal TypeBlade

This part fits 5 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2003INFINITIQX43.5LV6N/A
2002INFINITIQX43.5LV6N/A
2002NissanPathfinder3.5LV6N/A
2001INFINITIQX43.5LV6N/A
2001NissanPathfinderN/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:

145-780158-13202-16524213-2157223650Z8005S249472-161674334EC1768ECA1919MAPA84

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