GM 25190157 Sensor Throttle Posn Kit

( Brand: Gm ), ( Manufacturer Part Number: 25190157 ), ( Part Type: Sensor Throttle ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Parts Included: Only Part Reference 0 On The Diagram Is Included ), ( Replaces Part Number: 25181983, 96417730 )

Review GM Genuine Sensor Kit Throttle Posn

The **GM 25190157 Throttle Position Sensor Kit** is a precision-engineered component designed to provide accurate and reliable feedback on the position of a vehicle s throttle valve, ensuring optimal performance, fuel efficiency, and emissions compliance in General Motors powertrain systems. This sensor kit is specifically engineered for applications in modern gasoline engines, where precise throttle control is critical for both drivability and diagnostic accuracy. The kit includes a high-quality **throttle position sensor (TPS)**, which utilizes a potentiometer-based design to detect the angle of the throttle plate with exceptional resolution, allowing the engine control module (ECM) to adjust fuel delivery, ignition timing, and airflow dynamically in response to driver input. Constructed from durable materials, the sensor features a robust housing with corrosion-resistant coatings to withstand harsh environmental conditions, including exposure to moisture, dust, and temperature fluctuations, which are common in automotive environments. The internal wiring harness is meticulously shielded and routed to minimize electromagnetic interference, ensuring consistent and noise-free signal transmission to the vehicle s ECM. This kit is compatible with a wide range of GM vehicles, including models equipped with electronic throttle control (ETC) systems, where the TPS plays a pivotal role in maintaining smooth acceleration, idle stability, and overall engine responsiveness. Whether installed in a performance-oriented application or a daily driver, the GM 25190157 sensor kit delivers the precision and reliability required to keep the throttle system operating at peak efficiency, reducing the risk of erratic throttle response, stalling, or check engine light (CEL) codes related to P0120, P0121, or P0122. For technicians and enthusiasts alike, this sensor kit represents a dependable upgrade or replacement solution, ensuring seamless integration with the vehicle s powertrain management system while adhering to OEM specifications.

The **GM 25190157 Throttle Position Sensor (TPS) Kit** is a common replacement part for vehicles with the GM 2.5L V6 engine (e.g., 2004 2011 Chevrolet Impala, Monte Carlo, Malibu, and some GMC models). Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of buying a GM 25190157 TPS Kit**

1. **Direct OEM Replacement** This part is an original equipment manufacturer (OEM) or high-quality aftermarket equivalent designed to match the factory specifications of the GM 2.5L engine. It ensures proper fitment, calibration, and compatibility with the vehicle s engine control module (ECM).

2. **Reliability and Durability** The sensor is built to withstand the operating conditions of the engine, including heat, vibration, and electrical demands. Many users report long-term reliability, especially when installed correctly.

3. **Easy Installation** The TPS is typically a straightforward bolt-on replacement. It requires minimal tools (socket set, torque wrench, and possibly a scan tool for calibration) and does not involve major disassembly. Most mechanics or DIYers can complete the job in under an hour.

4. **Cost-Effective Fix** Replacing a faulty TPS is far cheaper than overhauling the fuel system, ignition components, or ECM due to persistent error codes. The part itself is affordable compared to labor-intensive repairs.

5. **Prevents Further Damage** A failing TPS can cause erratic idle, poor acceleration, or stalling, which may lead to catalytic converter damage or engine misfires if ignored. Replacing it early prevents secondary issues.

6. **Widely Available** This part is stocked by most auto parts retailers (AutoZone, O Reilly, RockAuto, etc.) and is often available as a complete kit (sensor wiring harness or gasket). This ensures easy sourcing even for older vehicles.

7. **Compatibility with Aftermarket Tuning** If you plan to modify your engine (e.g., forced induction, ECU tuning), a reliable TPS ensures accurate throttle position data for the ECM, which is critical for performance tuning.

8. **Warranty Coverage** Many reputable sellers offer warranties (e.g., 1 2 years), providing peace of mind against premature failure due to defects.

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### **Cons of buying a GM 25190157 TPS Kit**

1. **Potential Calibration Issues** After replacement, the ECM may need to relearn the idle position or throttle response. While some vehicles handle this automatically, others require a scan tool to reset the TPS values. Failure to do so can result in rough idling or false error codes.

2. **Quality Variability** While the GM 25190157 part is generally reliable, aftermarket clones may vary in quality. Cheaper alternatives might have inconsistent resistance readings or poor sealing, leading to electrical noise or leaks. Always opt for trusted brands (e.g., Dorman, Bosch, or OE-level parts).

3. **Wiring Harness or Connector Problems** The TPS is often paired with a wiring harness or gasket in the kit. If the harness is damaged or the gasket is old, it can cause intermittent issues. Inspect these components during installation to avoid future problems.

4. **Torque Specifications** Over-tightening or under-tightening the TPS can damage the sensor or the throttle body. Most manufacturers specify a torque value (e.g., 8 10 ft-lbs), and exceeding this can strip threads or warp the sensor.

5. **Symptoms May Persist** If the TPS is not the sole issue (e.g., vacuum leaks, faulty idle air control valve, or ECM glitches), replacing it alone may not resolve all symptoms. A thorough diagnostic (using an OBD-II scanner) is essential before purchasing.

6. **Limited Lifespan** While durable, the TPS is a wear item and may fail again after 80,000 120,000 miles, depending on driving conditions. Regular maintenance (e.g., cleaning carbon buildup) can extend its life.

7. **Compatibility with Modified Engines** If your vehicle has been heavily modified (e.g., turbocharged, supercharged, or ECU remapped), the stock TPS may not provide accurate readings for the new power levels. In such cases, a high-performance TPS (e.g., from Holley or Edelbrock) may be necessary.

8. **Potential for Counterfeit Parts** Purchasing from untrusted sellers (e.g., eBay without seller verification or unknown online marketplaces) risks receiving counterfeit or refurbished parts. Always buy from reputable dealers or directly from manufacturers.

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### **Conclusion**

The **GM 25190157 Throttle Position Sensor Kit** is a practical and cost-effective solution for vehicles experiencing TPS-related issues, provided it is sourced from a reliable supplier and installed correctly. Its OEM-level quality, ease of installation, and preventative benefits outweigh the minor drawbacks, which are largely mitigated by proper preparation and diagnostics.

- Using a high-quality replacement (preferably OEM or a well-reviewed aftermarket brand).

- Performing a pre-purchase diagnostic to confirm the TPS is the root cause.

- Following the installation instructions carefully, including torque specifications and ECM recalibration if needed.

- Inspecting the wiring harness and throttle body for damage or contamination.

For most standard applications (stock or mildly modified vehicles), this part is a sound investment. However, if your vehicle has complex modifications or recurring electrical issues, consult a professional mechanic to ensure the TPS is the correct fix.

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### **Recommendation**

- Your vehicle exhibits symptoms like rough idle, stalling, check engine lights (P0120, P0121, P0122, P0123), or poor throttle response.

- You ve confirmed the TPS is faulty via diagnostic testing (e.g., resistance reading outside 0.3 0.9V at idle and 4.5 5V at wide-open throttle).

- You re purchasing from a trusted retailer (e.g., RockAuto, Dorman, or a local auto parts store with return policies).

- You re prepared to recalibrate the ECM or use a scan tool post-installation.

- Your vehicle has unresolved vacuum leaks, a failing idle air control valve, or other engine issues that could mimic TPS symptoms.

- You suspect the harness or throttle body is damaged and not included in the kit.

- You re unsure about the installation process and lack basic mechanical skills.

**Final Verdict:** For the average driver with a stock or lightly modified GM 2.5L V6 vehicle, the **GM 25190157 TPS Kit is a recommended purchase** for resolving throttle-related issues. Prioritize quality, proper diagnostics, and correct installation to maximize its effectiveness.

Details:

Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer. Electrical parts are not returnable. Parts must be resalable and in the original packaging.

part #: 25190157 prices

• $141.49-$245.64

specifications steeringwheelsiiz:

• brand: Gm
• mpn: 25190157
• part type: Sensor Throttle
• genuine oem: Yes
• manufacturer warranty: 1 Year
• fitment type: Direct Replacement
• parts included: Only Part Reference 0 On The Diagram Is Included
• replaces part number: 25181983, 96417730

shipping steeringwheelsiiz:

• class: Standard
• service: Standard
• cost: $22.93
• type: Fixed
• transit: 4-7 Days

offer steeringwheelsiiz:

• sold: 0
• quantity: 4
• started: April 9, 2026
• availability: In Stock
• options: Ship-to-home

payments steeringwheelsiiz:

• other
• wallet: Apple-pay
• credit card: Mastercard

returns steeringwheelsiiz:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted

general steeringwheelsiiz:

• Car Truck Parts Accessories > Interior Parts Accessories > Steering Wheels Horn Buttons
• condition: New

seller steeringwheelsiiz:

• city: Chehalis, Washington
• rating: 97.5%
• # reviews: 178

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