HomeEmission Control > SensorsStandard Ignition TH446 Throttle Position Sensor
Part #: TH446

Standard Ignition TH446 Throttle Position Sensor

20 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$165.59Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Mazda, 3, 6, 3 Sport, 5, and CX-7
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Standard Ignition TH446 Throttle Position Sensor

The Standard Ignition TH446 throttle position sensor is designed for precise throttle monitoring in select Mazda vehicles. This sensor ensures accurate throttle input readings, contributing to optimal engine performance and emission control.

  • Connector Gender: Female for secure connection
  • Connector Type: Plug-in design for easy installation
  • Terminal Gender: Male terminals for reliable contact
  • Terminal Quantity: 3 terminals to support sensor functionality
  • Terminal Type: Blade terminals for durability and consistent signal transmission

Detailed Product Description

The TH446 throttle position sensor by Standard Ignition is engineered to meet the specifications of Mazda models including the Mazda 3, Mazda 3 Sport, Mazda 5, Mazda 6, and CX-7. Featuring a female plug-in connector and three male blade terminals, this sensor facilitates a stable electrical connection essential for accurate throttle position feedback. The blade terminal design enhances durability and reduces the risk of connection failure under typical operating conditions. This sensor plays a critical role in the vehicle’s emission control system by providing real-time throttle position data to the engine control unit (ECU).

Common Applications and Issues Addressed

  • Helps resolve erratic idle or stalling issues related to throttle position inaccuracies
  • Addresses poor acceleration or hesitation during throttle input
  • Corrects throttle-related emission control faults and check engine light triggers
  • Improves fuel efficiency by ensuring proper throttle response
  • Supports smooth engine performance in Mazda 3, 3 Sport, 5, 6, and CX-7 models

Installation Notes and Tips

  • Ensure the ignition is off before disconnecting the old sensor
  • Verify connector orientation; the female plug-in connector should align securely with the vehicle harness
  • Handle blade terminals carefully to avoid bending or damage
  • After installation, clear any diagnostic trouble codes and test throttle response
  • Consult the vehicle’s service manual for torque specifications and sensor location

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM standards for fit, form, and function. The TH446 throttle position sensor undergoes rigorous quality control to ensure reliable performance in Mazda vehicles. Warranty coverage details should be confirmed with the point of purchase or Standard Ignition documentation.

BrandStandard Ignition
Part NumberTH446
Connector GenderFemale
Connector TypePlug In
Terminal GenderMale
Terminal TypeBlade Terminals

This part fits 20 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2015Mazda32.5LL4N/A
2014Mazda32.5LL4N/A
2014Mazda62.5LL4N/A
2013Mazda32.5LL4N/A
2013Mazda3 Sport2.5LL4N/A
2013Mazda5N/A
2013Mazda62.5LL4N/A
2012Mazda32.5LL4N/A
2012Mazda3 Sport2.5LL4N/A
2012Mazda5N/A
2012Mazda62.5LL4N/A
2012MazdaCX-72.5LL4N/A
2011Mazda32.5LL4N/A
2011Mazda62.5LL4N/A
2011MazdaCX-72.5LL4N/A
2010Mazda32.5LL4N/A
2010Mazda5N/A
2010Mazda62.5LL4N/A
2010MazdaCX-72.5LL4N/A
2009Mazda62.5LL4N/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:

2-600685S1267071-798275369EC3402ECC1418L538189B1TPS4268

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