HomeEmission Control > SensorsStandard Ignition TH318 Throttle Position Sensor
Part #: TH318

Standard Ignition TH318 Throttle Position Sensor

⚙️ 13 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: Mazda and Kia, Miata, Protege, and Sephia
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Overview of Standard Ignition TH318 Throttle Position Sensor

The Standard Ignition TH318 throttle position sensor is designed for precise throttle monitoring in select Kia and Mazda vehicles. This sensor ensures accurate throttle input readings, contributing to optimal engine performance and emission control.

  • Connector Gender: Female
  • Connector Quantity: 1
  • Connector Type: Plug in
  • Terminal Gender: Male
  • Terminal Quantity: 3
  • Terminal Type: Blade terminals

Detailed Product Description

The TH318 throttle position sensor from Standard Ignition features a female plug-in connector with a single connection point, facilitating straightforward installation. It includes three male blade terminals that provide reliable electrical contact and signal transmission. This sensor is engineered to deliver consistent throttle position data to the engine control unit, which is critical for fuel injection and ignition timing adjustments. Compatible with Kia models such as the Sephia and Mazda models including the Miata and Protege, this sensor supports emission control systems by accurately detecting throttle valve position.

Common Applications and Problem Resolution

  • Helps resolve erratic idle or stalling issues related to throttle position inaccuracies
  • Addresses poor acceleration or hesitation caused by faulty throttle position readings
  • Corrects engine performance problems linked to emission control sensor failures
  • Prevents check engine light triggers related to throttle sensor faults

Installation Notes and Tips

Installation of the Standard Ignition TH318 throttle position sensor requires disconnecting the vehicle battery before removal of the old sensor. Ensure the female plug-in connector aligns properly with the sensor terminals. The three male blade terminals should be checked for corrosion or damage before installation. Tighten mounting hardware to manufacturer specifications to avoid sensor misalignment. This sensor is designed for direct replacement on compatible Kia Sephia and Mazda Miata and Protege models.

Quality Assurance and Warranty

Standard Ignition parts undergo rigorous testing to meet OEM standards for fit, form, and function. The TH318 throttle position sensor is manufactured to provide reliable performance and durability. Warranty coverage details are provided by Standard Ignition and typically include protection against defects in materials and workmanship for a specified period.

BrandStandard Ignition
Part NumberTH318
Connector GenderFemale
Connector TypePlug In
Terminal GenderMale
Terminal TypeBlade Terminals

This part fits 13 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2005MazdaMiata1.8LL4N/A
2004MazdaMiata1.8LL4N/A
2003MazdaMiata1.8LL4N/A
2002MazdaMiata1.8LL4N/A
2001MazdaMiata1.8LL4N/A
2001MazdaProtege1.6LL4N/A
2000MazdaMiata1.8LL4N/A
2000MazdaProtege1.6LL4N/A
1999MazdaMiata1.8LL4N/A
1999MazdaProtege1.6LL4N/A
1998MazdaProtege1.8LL4N/A
1997KiaSephia1.8LL4N/A
1997MazdaProtege1.8LL4N/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:

141-7094158-06321914604719850010302-16659200-12255S521771-772175382BP2Y18911AEC3192ECC1161MBP2Y18911SS10540TPS1126TPS457

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