HomeStandard Ignition TH308 Throttle Position Sensor
Part #: TH308

Standard Ignition TH308 Throttle Position Sensor

5 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$233.57Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
Out of Stock
OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: INFINITI, Q45
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Standard Ignition TH308 Throttle Position Sensor

The Standard Ignition TH308 throttle position sensor is designed specifically for Infiniti Q45 models, providing accurate throttle position readings to optimize engine performance. This sensor features a female plug-in connector and male blade terminals for reliable electrical connections.

  • Compatible with Infiniti Q45 vehicles
  • Female connector with one plug-in connection
  • Three male blade terminals for secure fitment
  • Part number TH308 for precise identification

Technical Details and Attributes

The TH308 throttle position sensor includes a single female connector designed for plug-in installation, ensuring straightforward replacement. It has three male blade terminals that provide a stable and durable electrical interface. These attributes contribute to consistent sensor performance and accurate throttle position feedback to the engine control unit.

Function and Application

This throttle position sensor is used to monitor the position of the throttle valve in Infiniti Q45 vehicles. It helps the engine control module regulate fuel injection and ignition timing based on throttle input.

  • Helps resolve engine hesitation or stalling issues
  • Addresses irregular idle speed problems
  • Improves throttle response accuracy
  • Corrects check engine light triggers related to throttle position
  • Supports smooth acceleration and deceleration

Installation Notes and Tips

When installing the Standard Ignition TH308 sensor, ensure the female plug-in connector is securely attached to the vehicle’s wiring harness. Verify that the three male blade terminals are properly aligned and seated to avoid electrical faults. It is recommended to disconnect the battery before installation to prevent electrical shorts.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications. The TH308 throttle position sensor undergoes rigorous testing to ensure durability and reliable performance. This part is backed by Standard Ignition’s warranty coverage, providing confidence in its quality and fitment for Infiniti Q45 vehicles.

BrandStandard Ignition
Part NumberTH308
Connector GenderFemale
Connector TypePlug In
Terminal GenderMale
Terminal TypeBlade Terminals

This part fits 5 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1995INFINITIQ454.5LV8N/Aw/o Harness
1994INFINITIQ454.5LV8N/Aw/o Harness
1993INFINITIQ454.5LV8N/Aw/o Harness
1992INFINITIQ454.5LV8N/Aw/o Harness
1991INFINITIQ454.5LV8N/Aw/o Harness

* 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:

158-1086191460732-293582262064U015S663471-7917EC3145TPS4196

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