OE Quality
60-Day Returns

Standard Ignition AS621 Manifold Absolute Pressure Sensor
Overview of Standard Ignition AS621 Manifold Absolute Pressure Sensor
The Standard Ignition AS621 Manifold Absolute Pressure Sensor is designed for precise monitoring of engine manifold pressure in select Dodge, Fiat, and Jeep vehicles. This sensor ensures accurate data transmission to the engine control unit, supporting optimal engine performance and emissions control.
- Connector Gender: Female
- Single Plug-in Connector
- Includes O-ring for secure sealing
- One Port Quantity
- Terminal Gender: Male with 3 Blade Terminals
Detailed Product Description
The AS621 sensor from Standard Ignition is engineered to provide reliable manifold absolute pressure readings for vehicles such as the Dodge Dart, Fiat 500, and Jeep Renegade. Featuring a female connector with a single plug-in type, it simplifies installation and ensures a secure electrical connection. The sensor includes an O-ring to maintain a tight seal and prevent vacuum leaks, which is critical for accurate pressure measurement. It has one port and three male blade terminals, designed to interface seamlessly with the vehicle’s wiring harness. This sensor is essential for maintaining proper air-fuel mixture and engine efficiency.
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
- Prevents check engine light triggers related to emission control faults
- Improves throttle response and engine performance in Dodge Dart, Fiat 500, and Jeep Renegade models
- Supports emission system compliance by providing accurate sensor feedback
Installation Notes and Tips
- Ensure the O-ring is properly seated to avoid vacuum leaks
- Disconnect the battery before installation to prevent electrical shorts
- Verify connector orientation; the female plug-in connector should align with the vehicle harness
- Inspect wiring and terminals for corrosion or damage before installation
- Use appropriate tools to avoid damaging the sensor or connector terminals
Quality Assurance and Warranty
Standard Ignition manufactures the AS621 sensor to meet or exceed OEM specifications for durability and performance. The sensor undergoes rigorous testing to ensure reliable operation under various driving conditions. While specific warranty details may vary, Standard Ignition typically offers coverage against defects in materials and workmanship to provide confidence in product quality.
| Brand | Standard Ignition |
| Part Number | AS621 |
| Connector Gender | Female |
| Connector Type | Plug In |
| Notes | Includes O-Ring |
| Terminal Gender | Male |
| Terminal Type | Blade |
This part fits 9 vehicles. Search below:
| Year | Make | Model | Transmission | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2018 | Jeep | Renegade | Manual | 1.4L | L4 | N/A | Located on Intercooler Piping |
| 2016 | Dodge | Dart | N/A | Located on Intercooler Piping | |||
| 2016 | Fiat | 500 | 1.4L | L4 | N/A | Located on Intercooler Piping | |
| 2015 | Dodge | Dart | N/A | Located on Intercooler Piping | |||
| 2015 | Fiat | 500 | 1.4L | L4 | N/A | Located on Intercooler Piping | |
| 2014 | Dodge | Dart | N/A | Located on Intercooler Piping | |||
| 2014 | Fiat | 500 | 1.4L | L4 | N/A | Located on Intercooler Piping | |
| 2013 | Fiat | 500 | 1.4L | L4 | N/A | Located on Intercooler Piping | |
| 2012 | Fiat | 500 | 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.