Standard Ignition TH121 Throttle Position Sensor

Throttle Position Sensor for Nissan Applications

Standard Ignition TH121 is a throttle position sensor for select Nissan trucks and SUVs from the 1990-1995 model years. It monitors throttle angle and sends the signal needed for accurate fuel and ignition control in the engine management system.

Key Features

• Throttle Position Sensor for emission control and engine management systems
• Female connector design with 2 plug-in connectors
• 6 blade terminals with male terminal gender
• Direct-fit style for select Nissan Pathfinder, Pickup, and D21 applications
• Standard Ignition TH121 replacement part number for service matching

Detailed Description

Standard Ignition TH121 is built for vehicles that rely on precise throttle input feedback to the powertrain control system. It is used on 1990-1995 Nissan Pathfinder, 1995 Nissan Pickup, and 1990-1994 Nissan D21 applications, making it a relevant replacement when diagnosing throttle signal irregularities on these Nissan models. This part cross-references Anchor 9908 for the same application.

The connector layout includes 2 female plug-in connectors and 6 male blade terminals, which supports proper electrical connection at the throttle body. For buyers searching for a Nissan Pathfinder throttle position sensor or a Nissan D21 TPS replacement, TH121 provides a fitment-specific option tied to the listed vehicle applications.

What It Helps Address

• Erratic throttle signal output
• Hesitation during acceleration
• Unstable idle related to throttle input feedback
• Check engine light conditions tied to throttle position sensor faults
• Driveability issues on Nissan Pathfinder, Pickup, and D21 models

Installation Notes and Tips

Verify connector style, terminal count, and mounting alignment before installation. Confirm the throttle body and wiring harness match the TH121 connector configuration on the vehicle. After installation, clear diagnostic trouble codes and verify throttle signal response with a scan tool or multimeter.

Quality Assurance

Standard Ignition supplies service parts for emission control and engine management applications, with fitment defined for the listed Nissan vehicles. Confirm the part number TH121 against the original sensor and vehicle application before ordering.