Standard Ignition TH318 Throttle Position Sensor

Throttle Position Sensor for Mazda and Kia

Standard Ignition TH318 is a throttle position sensor for select Mazda and Kia applications. It provides a direct-fit electrical connection with a female plug-in connector, three male blade terminals, and a single connector layout for straightforward replacement service.

Key Features

• Throttle position sensor for emission control and engine management systems
• Female connector with plug-in design for secure electrical attachment
• 3 male blade terminals for the specified vehicle applications
• Direct replacement part number TH318 for service and repair work
• Compatible with select Mazda Miata, Mazda Protege, and Kia Sephia applications

Detailed Description

Standard Ignition TH318 is built for vehicles that rely on accurate throttle position feedback to help the engine control system interpret throttle movement. This sensor uses a female connector, one connector interface, and three male blade terminals to match the original-style electrical layout on the listed applications. It is a practical replacement choice for drivers and technicians servicing a Mazda Miata throttle position sensor, Mazda Protege throttle position sensor, or Kia Sephia throttle position sensor.

This part cross-references 2-16659 and EC3192 for the same application. Standard Ignition TH318 is listed for 1999-2005 Mazda Miata, 1997-2001 Mazda Protege, and 1997 Kia Sephia.

What It Helps Address

• Erratic throttle signal readings
• Hesitation during acceleration
• Rough idle related to throttle input feedback
• Check engine light concerns tied to throttle position sensor faults
• Driveability issues caused by worn or inaccurate sensor output

Installation Notes and Tips

Verify connector style, terminal count, and vehicle application before installation. Inspect the throttle body connector and wiring for corrosion, bent terminals, or damaged locking tabs before connecting the new sensor. After installation, clear diagnostic trouble codes if needed and confirm throttle response with a scan tool or road test.

Quality Assurance

Standard Ignition supplies replacement ignition and engine management components for service applications, and TH318 is built to match the listed fitment and connector configuration for the specified vehicles.