OE Quality
60-Day Returns

Standard Ignition MAS0191 Mass Air Flow Sensor
Overview of Standard Ignition MAS0191 Mass Air Flow Sensor
The Standard Ignition MAS0191 Mass Air Flow Sensor is designed specifically for Toyota Tacoma models, providing accurate air flow measurement essential for optimal engine performance. This sensor features a bolt-on attachment method and a durable metal and plastic construction to ensure reliable operation.
- Compatible with Toyota Tacoma vehicles
- Bolt-on attachment method with 2 bolt holes for secure installation
- Single female rectangular connector for easy connection
- Five male blade terminals for precise electrical contact
- Durable metal and plastic materials for long-lasting use
- Sensor only; housing not included
Detailed Product Description
The MAS0191 Mass Air Flow Sensor by Standard Ignition is engineered to measure the volume and density of air entering the engine intake system of Toyota Tacoma trucks. This sensor uses a rectangular female connector with one connection point and five male blade terminals to transmit accurate data to the engine control unit (ECU). The bolt-on design with two bolt holes allows for straightforward replacement without the need for additional modifications. Constructed from metal and plastic components, this sensor balances durability with precision. Note that this product includes the sensor only and does not come with a housing.
Common Applications and Issues Addressed
- Helps resolve engine performance problems related to incorrect air-fuel mixture
- Addresses rough idling and stalling issues caused by faulty air flow readings
- Improves fuel efficiency by providing accurate air intake data
- Reduces emissions by ensuring proper combustion control
- Eliminates check engine light triggers related to mass air flow sensor faults
Installation Notes and Tips
- Ensure the vehicle is turned off and cooled before installation
- Use the two bolt holes to securely mount the sensor in place
- Connect the female rectangular connector firmly to avoid loose electrical contact
- Verify the five male blade terminals are clean and undamaged before installation
- Do not reuse the old sensor housing; this product includes sensor only
Quality Assurance and Warranty
Standard Ignition parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The MAS0191 Mass Air Flow Sensor undergoes rigorous quality control to ensure reliable performance in Toyota Tacoma vehicles. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.
| Brand | Standard Ignition |
|---|---|
| Part Number | MAS0191 |
| Attachment Method | Bolt On |
| Connector Gender | Female |
| Connector Shape | Rectangular |
| Housing Included | No |
| Material | Metal, Plastic |
| Notes | Sensor Only |
| Number of Bolt Holes | 2 |
| Terminal Gender | Male |
| Terminal Type | Blade |
This part fits 10 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2004 | Toyota | Tacoma | 2.4L | L4 | N/A | |
| 2004 | Toyota | Tacoma | 2.7L | L4 | N/A | |
| 2003 | Toyota | Tacoma | 2.4L | L4 | N/A | |
| 2003 | Toyota | Tacoma | 2.7L | L4 | N/A | |
| 2002 | Toyota | Tacoma | 2.4L | L4 | N/A | |
| 2002 | Toyota | Tacoma | 2.7L | L4 | N/A | |
| 2001 | Toyota | Tacoma | 2.4L | L4 | N/A | |
| 2001 | Toyota | Tacoma | 2.7L | L4 | N/A | |
| 2000 | Toyota | Tacoma | 2.4L | L4 | N/A | |
| 2000 | Toyota | Tacoma | 2.7L | L4 | N/A |
* 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.