HomeEmission Control > SensorsWalker 225-1056 Manifold Absolute Pressure Sensor
Part #: 225-1056

Walker 225-1056 Manifold Absolute Pressure Sensor

Walker Products
13 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Walker Products
Fitment: Subaru and Kia, Baja, Forester, Impreza, Legacy, Outback, and Sephia
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Overview of Walker Products Manifold Absolute Pressure Sensor

The Walker Products 225-1056 Manifold Absolute Pressure (MAP) Sensor is designed to provide accurate pressure readings for optimal engine performance. Compatible with select Kia and Subaru models, this sensor features a reliable blade terminal type and a rectangular female connector for secure installation.

  • Terminal Type: Blade for dependable electrical contact
  • Connector Shape: Rectangular female connector for precise fit
  • Terminal Quantity: 3 terminals ensuring proper signal transmission
  • Connector Gender: Female connector with male terminals
  • Compatible with Kia Sephia and Subaru Baja, Forester, Impreza, Legacy, and Outback models

Detailed Product Description

The Walker Products 225-1056 MAP Sensor is engineered to measure the absolute pressure inside the intake manifold, providing critical data to the engine control unit (ECU). This sensor’s blade terminal type and rectangular female connector ensure a secure and stable electrical connection, minimizing signal loss or interference. With three terminals, it supports accurate voltage output necessary for precise engine management. The male terminals on the sensor interface seamlessly with the female connector, facilitating straightforward installation and reliable operation.

Walker Products is known for its focus on emission control components, and this MAP sensor is part of their dedicated line designed to meet OEM specifications. The 225-1056 sensor supports emission control by delivering accurate manifold pressure readings, which help optimize fuel injection and ignition timing in Kia and Subaru vehicles.

Applications and Common Issues Addressed

  • Helps resolve engine stalling or rough idling caused by incorrect manifold pressure readings
  • Addresses poor fuel economy linked to faulty MAP sensor signals
  • Mitigates check engine light triggers related to emission control sensor faults
  • Improves engine performance issues such as hesitation or lack of power
  • Supports emission system compliance by providing accurate sensor data

Installation Notes and Tips

  • Ensure the rectangular female connector matches the vehicle’s wiring harness for proper fit
  • Verify the blade terminal type and three-terminal configuration before installation
  • Handle the sensor carefully to avoid damage to the male terminals
  • Consult vehicle-specific service manuals for torque specifications and sensor location
  • Test sensor output after installation to confirm proper operation

Quality Assurance and Warranty

Walker Products maintains strict quality control standards for their emission control sensors, including the 225-1056 MAP sensor. Each unit undergoes rigorous testing to ensure durability and accurate performance under various operating conditions. While specific warranty details may vary, Walker Products typically offers coverage against manufacturing defects to support long-term reliability.

BrandWalker
Part Number225-1056
PositionWalker Products
Connector GenderFemale
Connector ShapeRectangular
Terminal GenderMale
Terminal Quantity3
Terminal TypeBlade

This part fits 13 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2006SubaruBaja2.5LH4N/AWalker Products
2005SubaruBaja2.5LH4N/AWalker Products
2004SubaruBaja2.5LH4N/AWalker Products
2004SubaruForester2.5LH4N/AWalker Products
2004SubaruImpreza2.5LH4N/AWalker Products
2004SubaruLegacy2.5LH4N/AFits all models except those with California emissions.; Walker Products
2004SubaruOutback2.5LH4N/AFits all models except those with California emissions.; Walker Products
2003SubaruBaja2.5LH4N/AWalker Products
2003SubaruForester2.5LH4N/AWalker Products
2003SubaruImpreza2.5LH4N/AWalker Products
2003SubaruLegacy2.5LH4N/AWalker Products
2003SubaruOutback2.5LH4N/AWalker Products
1997KiaSephia1.8LL4N/AWalker Products

* 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:

158-1095158-1350213-215822627 AA2205S2482AS149AS149TAS172AS324EC1702EC1759EC1806MA0136MP142MZ5A6-18-211PRS0015SU4161SU4351SU6797

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