HomeEmission Control > SensorsHitachi MAF0045 Mass Air Flow Sensor
Part #: MAF0045

Hitachi MAF0045 Mass Air Flow Sensor

7 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: INFINITI, FX45 and Q45
Easy Returns — Return within 60 days for a full refund
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Reliable Mass Air Flow Sensor for Infiniti FX45 and Q45

The Hitachi MAF0045 Mass Air Flow Sensor is designed to provide accurate airflow measurement for Infiniti FX45 and Q45 models. This sensor helps maintain optimal engine performance by delivering precise data to the engine control unit.

  • Genuine Hitachi manufactured sensor ensuring quality and durability
  • Compatible with Infiniti FX45 and Q45 vehicles
  • Part number MAF0045 for easy identification and replacement
  • Measures the amount of air entering the engine for efficient fuel management
  • Essential component in emission control systems

Detailed Product Description

The Hitachi MAF0045 Mass Air Flow Sensor is a critical component in the emission control system of Infiniti FX45 and Q45 models. By accurately measuring the volume and density of air entering the engine, it allows the engine control unit to adjust fuel injection accordingly. This precise measurement helps optimize combustion, improve fuel efficiency, and reduce emissions. Manufactured by Hitachi, a trusted name in automotive sensors, this MAF sensor meets OEM specifications to ensure reliable performance and longevity.

Common Applications and Issues Addressed

  • Helps resolve rough idling and engine hesitation in Infiniti FX45 and Q45
  • Addresses poor fuel economy caused by inaccurate air flow readings
  • Reduces engine stalling and misfires related to faulty mass air flow sensors
  • Improves overall engine responsiveness and acceleration
  • Supports emission control compliance by providing accurate airflow data

Installation Notes and Tips

When installing the Hitachi MAF0045 sensor, ensure the engine is cool and the ignition is off. Carefully disconnect the electrical connector and remove the old sensor without damaging the intake system. Install the new sensor securely and reconnect the electrical plug. It is recommended to check for any diagnostic trouble codes after installation and clear them if necessary. Proper installation helps maintain sensor accuracy and engine performance.

Quality Assurance and Warranty

As a genuine Hitachi part, the MAF0045 sensor is manufactured to meet strict quality standards. While specific warranty details may vary, Hitachi products typically come with a limited warranty covering defects in materials and workmanship. Using this sensor helps ensure consistent engine operation and supports emission system integrity for Infiniti FX45 and Q45 vehicles.

BrandHitachi
Part NumberMAF0045
ManufacturerHitachi

This part fits 7 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersPositionNotes
2008INFINITIFX45Base4.5LV8N/AIncludes: Housing; Grade: Actual OE; Terminal Quantity: 5; Availability: Available to Order; Housing Included: Yes; Terminal Type: Blade
2007INFINITIFX45Base4.5LV8N/AIncludes: Housing; Grade: Actual OE; Terminal Quantity: 5; Availability: Available to Order; Housing Included: Yes; Terminal Type: Blade
2006INFINITIFX45Base4.5LV8N/AIncludes: Housing; Grade: Actual OE; Terminal Quantity: 5; Availability: Available to Order; Housing Included: Yes; Terminal Type: Blade
2006INFINITIQ45Base4.5LV8N/AIncludes: Housing; Grade: Actual OE; Terminal Quantity: 5; Availability: Available to Order; Housing Included: Yes; Terminal Type: Blade
2005INFINITIFX45Base4.5LV8N/AIncludes: Housing; Grade: Actual OE; Terminal Quantity: 5; Availability: Available to Order; Housing Included: Yes; Terminal Type: Blade
2005INFINITIQ45Base4.5LV8N/AIncludes: Housing; Grade: Actual OE; Terminal Quantity: 5; Availability: Available to Order; Housing Included: Yes; Terminal Type: Blade
2004INFINITIFX45Base4.5LV8N/AIncludes: Housing; Grade: Actual OE; Terminal Quantity: 5; Availability: Available to Order; Housing Included: Yes; Terminal Type: Blade

* 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:

22680-AT300745003686-50036AF10141DL-3002MA1233MAS0401MQ6210

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