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Standard Ignition TX31 Engine Coolant Temperature Sensor
| Brand | Standard Ignition TX31 |
|---|---|
| Attachment Method | Bolt On |
| Connector Gender | Female |
| Connector Shape | Rectangular |
| Connector Type | Plug In |
| Terminal Gender | Male |
| Terminal Type | Blade |
| Fits | INFINITI and Nissan · 17 vehicles |
Bolt-on installation. Plug-in coolant temperature sensor with a rectangular connector.
Direct sensor replacement. Engine coolant temperature sensing in a compact, easy-to-connect design.
Blade terminals. Two-terminal electrical connection for reliable signal transfer.
Cross-references Anchor 9351, PowerStop 17-1286 and Standard Ignition TX31 for the same application. See all 7.
Engine Coolant Temperature Sensor for Nissan and Infiniti
Standard Ignition TX31 is an engine coolant temperature sensor built for direct replacement in select Nissan and Infiniti applications. It uses a bolt-on attachment, a rectangular plug-in connector, and a 2-blade terminal layout to match the original-style electrical connection.
Use this coolant temperature sensor when servicing a vehicle that needs accurate engine coolant temperature input for proper engine management. Fits 1990-1992 INFINITI M30, N/A; Fits 1984-1989 Nissan 300ZX, N/A; Fits 1987-1989 Nissan Pathfinder, N/A; Fits 1988 Nissan 200SX, N/A; Fits 1985-1988 Nissan Maxima, N/A.
Key Features
- Engine coolant temperature sensor for cooling-system and engine-control service
- Bolt-on attachment method for secure mounting
- Female rectangular connector with plug-in design
- 2 male blade terminals for OE-style electrical interface
- Direct-fit application coverage for select Nissan and Infiniti models
- Standard Ignition TX31 part number for catalog matching and cross-reference
Detailed Description
Standard Ignition TX31 is an engine coolant temperature sensor used to report coolant temperature to the vehicle’s control system. Accurate temperature input is important for fuel delivery, idle quality, and engine warm-up strategy. This sensor is listed for 1990-1992 INFINITI M30, 1984-1989 Nissan 300ZX, 1987-1989 Nissan Pathfinder, 1988 Nissan 200SX, and 1985-1988 Nissan Maxima, making it a practical replacement for common Nissan and Infiniti cooling-system repairs. This part cross-references Anchor 9351 for the same application.
What It Helps Address
- Incorrect coolant temperature readings
- Hard starting when the engine is cold
- Rough idle during warm-up
- Fuel mixture issues tied to temperature input
- Check engine concerns related to coolant temperature signal loss
Installation Notes and Tips
Confirm connector shape, terminal style, and mounting style before installation. Inspect the harness connector for corrosion, bent terminals, or heat damage, and verify the cooling system is at the proper level before replacing the sensor. Standard Ignition TX31 should be matched to the vehicle application and installed with care to avoid thread or connector damage.
Quality Assurance
Standard Ignition is a recognized aftermarket brand for electrical and engine-management components. TX31 is cataloged for direct application matching on select Nissan and Infiniti vehicles, including Nissan 300ZX, Pathfinder, 200SX, and Maxima models.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1992 | INFINITI | M30 | — | — | N/A | — |
| 1991 | INFINITI | M30 | — | — | N/A | — |
| 1990 | INFINITI | M30 | — | — | N/A | — |
| 1989 | Nissan | 300ZX | — | — | N/A | — |
| 1989 | Nissan | Pathfinder | — | — | N/A | — |
| 1988 | Nissan | 200SX | 3.0L | V6 | N/A | — |
| 1988 | Nissan | 300ZX | — | — | N/A | — |
| 1988 | Nissan | Maxima | — | — | N/A | — |
| 1988 | Nissan | Pathfinder | 3.0L | V6 | N/A | — |
| 1987 | Nissan | 300ZX | — | — | N/A | — |
| 1987 | Nissan | Maxima | — | — | N/A | — |
| 1987 | Nissan | Pathfinder | 3.0L | V6 | N/A | — |
| 1986 | Nissan | 300ZX | — | — | N/A | — |
| 1986 | Nissan | Maxima | — | — | N/A | — |
| 1985 | Nissan | 300ZX | — | — | N/A | — |
| 1985 | Nissan | Maxima | — | — | N/A | — |
| 1984 | Nissan | 300ZX | — | — | N/A | — |
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