OE Quality
60-Day Returns

Standard Ignition AS429 Manifold Absolute Pressure Sensor
Overview of Standard Ignition AS429 Manifold Absolute Pressure Sensor
The Standard Ignition AS429 Manifold Absolute Pressure (MAP) Sensor is designed for precise engine management in select Buick, Cadillac, and Chevrolet vehicles. This sensor plays a critical role in monitoring manifold pressure to optimize fuel delivery and engine performance.
- Connector Gender: Female
- Connector Quantity: 1
- Connector Type: Plug in
- Port Quantity: 1
- Terminal Gender: Male
- Terminal Quantity: 3
- Terminal Type: Blade
Detailed Product Description
The AS429 MAP sensor from Standard Ignition features a single plug-in female connector with one port, ensuring straightforward installation and reliable electrical connection. It includes three male blade terminals that provide secure contact and consistent signal transmission. This sensor is engineered to deliver accurate manifold pressure readings, which are essential for the engine control unit (ECU) to adjust air-fuel mixture and ignition timing effectively.
Compatible with various Buick, Cadillac, and Chevrolet models such as the Camaro, Corvette, Cruze, CTS, Encore, Sonic, and Trax, the AS429 sensor supports optimal engine performance and emissions control. The sensor’s design facilitates integration with the vehicle’s existing wiring harness, minimizing installation complexity.
Common Applications and Issues Addressed
- Helps resolve engine stalling or rough idling caused by incorrect manifold pressure readings
- Addresses poor fuel economy linked to faulty MAP sensor data
- Reduces engine hesitation or lack of power during acceleration
- Supports emission control by providing accurate pressure data to the ECU
- Prevents check engine light triggers related to manifold pressure sensor faults
Installation Notes and Tips
- Ensure the female plug connector aligns properly with the vehicle’s wiring harness before securing
- Verify the three male blade terminals are free of corrosion or damage for optimal electrical contact
- Check that the single port is clean and unobstructed to maintain accurate pressure readings
- Consult the vehicle’s service manual for torque specifications and sensor location
- Disconnect the battery before installation to avoid electrical shorts
Quality Assurance and Warranty
Standard Ignition manufactures the AS429 MAP sensor to meet or exceed OEM specifications for fit, form, and function. Each sensor undergoes rigorous testing to ensure durability and reliable performance under various operating conditions. While specific warranty details may vary, Standard Ignition typically offers a limited warranty covering defects in materials and workmanship to provide confidence in product quality.
| Brand | Standard Ignition |
|---|---|
| Part Number | AS429 |
| Connector Gender | Female |
| Connector Type | Plug In |
| Terminal Gender | Male |
| Terminal Type | Blade |
This part fits 43 vehicles. Search below:
| Year | Make | Model | Submodel | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2021 | Buick | Encore | 1.4L | L4 | N/A | Located on Intercooler Piping | |
| 2021 | Chevrolet | Trax | 1.4L | L4 | N/A | ||
| 2020 | Chevrolet | Sonic | 1.4L | L4 | N/A | ||
| 2020 | Chevrolet | Trax | 1.4L | L4 | N/A | ||
| 2019 | Buick | Encore | 1.4L | L4 | N/A | Located on Intercooler Piping | |
| 2019 | Chevrolet | Sonic | 1.4L | L4 | N/A | ||
| 2019 | Chevrolet | Trax | 1.4L | L4 | N/A | ||
| 2018 | Buick | Encore | 1.4L | L4 | N/A | Located on Intercooler Piping | |
| 2018 | Chevrolet | Sonic | 1.4L | L4 | N/A | ||
| 2018 | Chevrolet | Trax | 1.4L | L4 | N/A | ||
| 2017 | Buick | Encore | 1.4L | L4 | N/A | Located on Intercooler Piping | |
| 2017 | Chevrolet | Cruze | 1.4L | L4 | N/A | Intake Manifold Absolute Pressure Sensor (MAP) | |
| 2017 | Chevrolet | Sonic | 1.4L | L4 | N/A | ||
| 2017 | Chevrolet | Trax | 1.4L | L4 | N/A | ||
| 2016 | Buick | Encore | 1.4L | L4 | N/A | On Intake Manifold | |
| 2016 | Chevrolet | Cruze | 1.4L | L4 | N/A | Intake Manifold Absolute Pressure Sensor (MAP) | |
| 2016 | Chevrolet | Trax | 1.4L | L4 | N/A | ||
| 2015 | Buick | Encore | N/A | ||||
| 2015 | Cadillac | CTS | 6.2L | V8 | N/A | Supercharger Air Outlet Pressure Sensor | |
| 2015 | Chevrolet | Cruze | 1.4L | L4 | N/A | ||
| 2015 | Chevrolet | Sonic | 1.4L | L4 | N/A | ||
| 2015 | Chevrolet | Trax | 1.4L | L4 | N/A | ||
| 2014 | Buick | Encore | N/A | ||||
| 2014 | Cadillac | CTS | 6.2L | V8 | N/A | ||
| 2014 | Chevrolet | Cruze | 1.4L | L4 | N/A | ||
| 2014 | Chevrolet | Sonic | 1.4L | L4 | N/A | ||
| 2014 | Chevrolet | Trax | 1.4L | L4 | N/A | ||
| 2013 | Buick | Encore | N/A | ||||
| 2013 | Cadillac | CTS | 6.2L | V8 | N/A | ||
| 2013 | Chevrolet | Corvette | 6.2L | V8 | N/A | ||
| 2013 | Chevrolet | Cruze | 1.4L | L4 | N/A | ||
| 2013 | Chevrolet | Sonic | 1.4L | L4 | N/A | ||
| 2012 | Cadillac | CTS | 6.2L | V8 | N/A | ||
| 2012 | Chevrolet | Camaro | 6.2L | V8 | N/A | ||
| 2012 | Chevrolet | Corvette | 6.2L | V8 | N/A | ||
| 2012 | Chevrolet | Cruze | 1.4L | L4 | N/A | ||
| 2012 | Chevrolet | Sonic | 1.4L | L4 | N/A | ||
| 2011 | Cadillac | CTS | 6.2L | V8 | N/A | ||
| 2011 | Chevrolet | Cruze | 1.4L | L4 | N/A | ||
| 2010 | Cadillac | CTS | 6.2L | V8 | N/A | ||
| 2010 | Chevrolet | Corvette | ZR1 | 6.2L | V8 | N/A | |
| 2009 | Cadillac | CTS | 6.2L | V8 | N/A | ||
| 2009 | Chevrolet | Corvette | ZR1 | 6.2L | V8 | 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.