HomeBody > SensorsStandard Ignition APS645 Accelerator Pedal Sensor
Part #: APS645

Standard Ignition APS645 Accelerator Pedal Sensor

⚙️ 12 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: INFINITI, EX35, EX37, FX35, FX37, QX50, and QX70
🔄Easy Returns — Return within 60 days for a full refund
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Reliable Accelerator Pedal Sensor for Infiniti Vehicles

The Standard Ignition APS645 accelerator pedal sensor is designed to provide accurate throttle position feedback for Infiniti models including EX35, EX37, FX35, FX37, QX50, and QX70. This sensor ensures smooth acceleration response and optimal engine performance.

  • Connector Gender: Female for secure connection
  • Single oval-shaped plug-in connector for easy installation
  • Terminal Gender: Male with 6 pin terminals for reliable electrical contact
  • Compatible with multiple Infiniti models for precise fitment
  • Part Number APS645 for exact replacement and identification

Detailed Product Description

The Standard Ignition APS645 accelerator pedal sensor features a female connector with an oval shape designed to plug directly into the vehicle’s wiring harness. It includes six male pin terminals that ensure a stable and consistent electrical connection, critical for accurate throttle position sensing. This sensor is engineered to meet the specifications required by Infiniti EX35, EX37, FX35, FX37, QX50, and QX70 models, providing a direct fit without modification.

Common Applications and Problem Resolution

  • Restores proper throttle response in Infiniti EX35 and FX35 models
  • Eliminates hesitation or delayed acceleration issues
  • Resolves check engine light triggers related to throttle position sensor faults
  • Improves drivability and engine performance consistency
  • Prevents stalling or rough idle caused by faulty pedal sensors

Installation Notes and Tips

When installing the APS645 accelerator pedal sensor, ensure the female oval plug is fully seated into the vehicle’s connector to avoid loose connections. Verify that all six male pin terminals align correctly with the harness terminals. It is recommended to disconnect the battery before installation to prevent electrical shorts. Calibration or relearning procedures may be required depending on the vehicle’s ECU system.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM standards for durability and performance. The APS645 accelerator pedal sensor undergoes rigorous quality control to ensure reliable operation. Please refer to Standard Ignition’s warranty policy for coverage details on this part number.

BrandStandard Ignition
Part NumberAPS645
Connector GenderFemale
Connector Quantity1
Connector ShapeOval
Connector TypePlug in
Terminal GenderMale
Terminal Quantity6
Terminal TypePin

This part fits 12 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2016INFINITIQX50N/Aw/o Technology Package
2015INFINITIQX50N/Aw/o Technology Package
2014INFINITIQX50N/Aw/o Technology Package
2014INFINITIQX703.7LV6N/A
2013INFINITIEX37N/Aw/o Technology Package
2013INFINITIFX37N/A
2012INFINITIEX35N/Aw/o Technology Package
2012INFINITIFX35N/A
2011INFINITIEX35N/Aw/o Technology Package
2011INFINITIFX35N/A
2010INFINITIEX35N/Aw/o Technology Package
2010INFINITIFX35N/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:

180021BA0A2-80545APS645PPS1545

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