Standard Ignition TH399 Throttle Position Sensor

Throttle Position Sensor for Hyundai Sonata

Standard Ignition TH399 is a throttle position sensor for 1999-2001 Hyundai Sonata applications. It uses a plug-in connector and blade terminals to provide a direct electrical interface for the throttle position circuit.

Key Features

• Fits 1999-2001 Hyundai Sonata
• Throttle Position Sensor for emission control and engine management systems
• Plug-in connector design for straightforward electrical connection
• 1 connector with 4 blade terminals
• Female and male connector gender configuration as specified for the application
• Standard Ignition TH399 replacement part number

Detailed Description

Standard Ignition TH399 is built for Hyundai Sonata throttle position sensor service on 1999, 2000, and 2001 model years. The sensor monitors throttle movement and sends position data to the engine control system, helping the vehicle manage fuel delivery and throttle response. This part cross-references Walker Products 200-1378 for the same application.

What It Helps Solve

• Throttle position signal faults
• Erratic idle related to throttle input errors
• Delayed or inconsistent throttle response
• Check engine light conditions tied to the throttle position circuit
• Driveability issues caused by inaccurate throttle feedback

Installation Notes and Tips

Verify connector style and terminal layout before installation. This TH399 uses a plug-in connector with 4 blade terminals, so the harness connection should match the original sensor interface on the vehicle. Confirm fitment against the specific 1999-2001 Hyundai Sonata application before replacement.

Quality Assurance

Standard Ignition supplies emission control sensors for service replacement applications. TH399 is listed with direct fitment data for the 1999-2001 Hyundai Sonata, supporting accurate part selection for throttle position sensor service.