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Standard Ignition TH186 Throttle Position Sensor
Reliable Throttle Position Sensor for Infiniti, Nissan, and Mercury Vehicles
The Standard Ignition TH186 throttle position sensor is designed to provide accurate throttle position readings for a range of Infiniti, Nissan, and Mercury models. This sensor helps maintain optimal engine performance and fuel efficiency by delivering precise data to the vehicle’s engine control unit.
Key Features of the Standard Ignition TH186 Throttle Position Sensor
- Compatible with Infiniti 200SX, 300ZX, J30, G20, and Villager models
- Fits Nissan D21, Frontier, Pickup, Quest, Sentra, and Xterra vehicles
- Also suitable for Mercury models including Pickup and Villager
- Direct replacement part number TH186 for easy identification
- Ensures accurate throttle position feedback for improved engine response
Detailed Description of the TH186 Throttle Position Sensor
The Standard Ignition TH186 throttle position sensor is engineered to meet or exceed OEM specifications for emission control sensors. It monitors the position of the throttle valve and sends this information to the engine control module, which adjusts fuel injection and ignition timing accordingly. This sensor is critical for maintaining smooth acceleration, reducing emissions, and optimizing fuel economy in compatible Infiniti, Nissan, and Mercury vehicles.
Common Issues Addressed by the TH186 Sensor
- Erratic or unstable engine idle
- Poor throttle response or hesitation during acceleration
- Check engine light triggered by throttle position sensor faults
- Reduced fuel efficiency due to inaccurate throttle data
- Engine stalling or surging at low speeds
Installation Notes and Tips for the TH186 Sensor
- Ensure the ignition is off before beginning installation
- Disconnect the battery to prevent electrical shorts
- Locate the existing throttle position sensor on the throttle body
- Remove mounting screws and unplug the electrical connector carefully
- Install the new TH186 sensor, secure mounting screws, and reconnect the electrical plug
- Clear any diagnostic trouble codes after installation using an OBD-II scanner
Quality Assurance and Warranty Information
Standard Ignition parts are manufactured to meet strict quality standards and undergo rigorous testing to ensure durability and reliable performance. The TH186 throttle position sensor comes with a limited warranty against defects in materials and workmanship, providing confidence in its long-term operation within compatible Infiniti, Nissan, and Mercury vehicles.
| Brand | Standard Ignition |
|---|---|
| Part Number | TH186 |
| Connector Gender | Female; Female |
| Connector Type | Plug In |
| Terminal Gender | Male; Male |
| Terminal Type | Blade Terminals |
This part fits 40 vehicles. Search below:
| Year | Make | Model | Transmission | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2005 | Nissan | Frontier | 2.5L | L4 | N/A | ||
| 2004 | Nissan | Frontier | 2.4L | L4 | N/A | ||
| 2004 | Nissan | Pickup | N/A | ||||
| 2004 | Nissan | Xterra | 2.4L | L4 | N/A | ||
| 2003 | Nissan | Frontier | 2.4L | L4 | N/A | ||
| 2003 | Nissan | Pickup | N/A | ||||
| 2003 | Nissan | Xterra | 2.4L | L4 | N/A | ||
| 2002 | Mercury | Villager | N/A | ||||
| 2002 | Nissan | Frontier | 2.4L | L4 | N/A | ||
| 2002 | Nissan | Pickup | N/A | ||||
| 2002 | Nissan | Quest | 3.3L | V6 | N/A | ||
| 2002 | Nissan | Xterra | 2.4L | L4 | N/A | ||
| 2001 | Mercury | Villager | N/A | ||||
| 2001 | Nissan | Frontier | 2.4L | L4 | N/A | ||
| 2001 | Nissan | Quest | 3.3L | V6 | N/A | ||
| 2001 | Nissan | Xterra | 2.4L | L4 | N/A | ||
| 2000 | Mercury | Villager | N/A | ||||
| 2000 | Nissan | Frontier | 2.4L | L4 | N/A | ||
| 2000 | Nissan | Quest | 3.3L | V6 | N/A | ||
| 2000 | Nissan | Xterra | 2.4L | L4 | N/A | ||
| 1999 | INFINITI | G20 | N/A | ||||
| 1999 | Mercury | Villager | N/A | ||||
| 1999 | Nissan | Frontier | 2.4L | L4 | N/A | ||
| 1999 | Nissan | Quest | 3.3L | V6 | N/A | ||
| 1999 | Nissan | Sentra | Automatic | 2.0L | L4 | N/A | |
| 1998 | Mercury | Villager | N/A | ||||
| 1998 | Nissan | 200SX | Automatic | 2.0L | L4 | N/A | |
| 1998 | Nissan | Frontier | 2.4L | L4 | N/A | ||
| 1998 | Nissan | Quest | 3.0L | V6 | N/A | ||
| 1998 | Nissan | Sentra | Automatic | 2.0L | L4 | N/A | |
| 1997 | INFINITI | J30 | N/A | ||||
| 1997 | Mercury | Villager | N/A | ||||
| 1997 | Nissan | Quest | 3.0L | V6 | N/A | ||
| 1996 | INFINITI | J30 | N/A | ||||
| 1996 | Mercury | Villager | N/A | ||||
| 1996 | Nissan | 300ZX | 3.0L | V6 | N/A | ||
| 1996 | Nissan | Pickup | 2.4L | L4 | N/A | Fits vehicles equipped with California emissions. | |
| 1996 | Nissan | Quest | 3.0L | V6 | N/A | ||
| 1995 | Nissan | Pickup | 2.4L | L4 | N/A | Fits vehicles equipped with California emissions. | |
| 1994 | Nissan | D21 | 2.4L | L4 | N/A | Fits vehicles equipped with California emissions. |
* 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.