Standard Ignition TH308 Throttle Position Sensor

Throttle Position Sensor for Infiniti Q45

Standard Ignition TH308 is a throttle position sensor for select 1991-1995 Infiniti Q45 applications without a harness. It uses a female plug-in connector with three male blade terminals for a direct electrical interface at the throttle body. This TH308 throttle position sensor supports accurate throttle signal feedback for Infiniti Q45 models across the listed years.

Key Features

• Part number: TH308
• Throttle position sensor for emission control system service
• Fits 1991-1995 Infiniti Q45, N/A, w/o Harness
• Female connector with plug-in design
• 3 male blade terminals for the sensor connection
• Interchange reference: 2262064U01

Product Details

Standard Ignition TH308 is built for vehicles that rely on a throttle position sensor to report throttle angle to the engine management system. On the Infiniti Q45, this sensor helps the control system interpret throttle movement so the engine can respond correctly during acceleration, idle transition, and part-throttle operation. If you are replacing a worn or inconsistent TH308 unit on a 1991-1995 Infiniti Q45, this part matches the listed connector style and terminal layout for the application without a harness.

This part cross-references 2262064U01 for the same application.

Common Issues It May Address

• Erratic throttle signal output
• Delayed or uneven throttle response
• Idle instability related to throttle position feedback
• Check engine light concerns tied to sensor signal faults
• Driveability problems caused by a worn TPS

Installation Notes and Tips

Verify connector style, terminal count, and harness configuration before installation. This TH308 throttle position sensor is listed for Infiniti Q45 models without a harness, so confirm the vehicle-side connection matches the female plug-in, 3-terminal blade layout. After installation, inspect throttle body alignment and perform any required sensor adjustment or relearn procedure specified by the vehicle service information.

Quality Assurance

Standard Ignition supplies emission control sensors for service replacement applications, and TH308 is cataloged to the listed Infiniti Q45 fitment for consistent application matching.