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Spectra MA178 Mass Air Flow Sensor
| Brand | Spectra MA178 |
|---|---|
| Fits | INFINITI and Nissan · 9 vehicles |
Programmable ceramic board. Premium silicon coating helps protect against heat and vibration.
Fast signal response. Optimized circuit design improves consistency.
Platinum sensor elements. Uses new platinum resistance thermometer sensors for accurate airflow measurement.
Cross-references Hitachi Automotive MAF0090, Standard Ignition MAS0493 and 5S2719 for the same application. See all 31.
Spectra MA178 Mass Air Flow Sensor
The Spectra MA178 mass air flow sensor is a direct-fit emission control sensor for select Nissan and INFINITI applications. It uses a programmable ceramic circuit board with a premium silicon coating to help protect the sensor from under-hood heat swings and road vibration, while the platinum resistance thermometer design supports quicker signal response and stable airflow readings.
- Mass air flow sensor for emission control systems
- Programmable ceramic circuit board with protective silicon coating
- Platinum resistance thermometer sensor design for responsive signal output
- Direct-fit replacement for select 2000-2002 INFINITI G20, 2000-2001 INFINITI I30, 2000-2001 Nissan Maxima, and 2000-2001 Nissan Sentra applications
- Part number MA178 for catalog and fitment lookup
Fitment and Application Details
Compatible with 2000-2002 INFINITI G20, sensor module w/housing; with 5 pin connector. Compatible with 2000-2001 INFINITI I30, sensor module w/housing; with 5 pin connector. Compatible with 2000-2001 Nissan Maxima, sensor module w/housing; with 5 pin connector. Compatible with 2000-2001 Nissan Sentra, sensor module w/housing; with 5 pin connector. This part cross-references Standard Ignition MAS0493 for the same application.
Common Symptoms This Part May Address
- Rough idle caused by inaccurate airflow measurement
- Hesitation or stumble during acceleration
- Check engine light related to mass air flow sensor performance
- Poor fuel control from incorrect intake air readings
- Driveability issues on Nissan Maxima, Nissan Sentra, and INFINITI G20 or I30 models
Installation Notes
Verify the 5 pin connector style and sensor module with housing configuration before installation. Confirm the vehicle year, make, and model match the listed application, and inspect the intake tract for contamination or air leaks that can affect sensor readings. The MA178 should be installed on the exact listed applications for proper fit and function.
Quality Assurance
Spectra builds this mass air flow sensor with a protected circuit board and platinum sensing elements to support consistent operation in demanding under-hood conditions.
| Year | Make | Model | Liters | Cylinders | Notes |
|---|---|---|---|---|---|
| 2002 | INFINITI | G20 | 2.0L | L4 | Sensor Module w/Housing; with 5 Pin Connector |
| 2001 | INFINITI | G20 | 2.0L | L4 | Sensor Module w/Housing; with 5 Pin Connector |
| 2001 | INFINITI | I30 | 3.0L | V6 | Sensor Module w/Housing; with 5 Pin Connector |
| 2001 | Nissan | Maxima | 3.0L | V6 | Sensor Module w/Housing; with 5 Pin Connector |
| 2001 | Nissan | Sentra | 2.0L | L4 | Sensor Module w/Housing; with 5 Pin Connector |
| 2000 | INFINITI | G20 | 2.0L | L4 | Sensor Module w/Housing; with 5 Pin Connector |
| 2000 | INFINITI | I30 | 3.0L | V6 | Sensor Module w/Housing; with 5 Pin Connector |
| 2000 | Nissan | Maxima | 3.0L | V6 | Sensor Module w/Housing; with 5 Pin Connector |
| 2000 | Nissan | Sentra | 2.0L | L4 | Sensor Module w/Housing; with 5 Pin Connector |
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