PLX Gen 4 Wideband AFR Sensor Module
Upgrade your vehicle's tuning capabilities with the next generation of air/fuel ratio management. The PLX Gen 4 Wideband AFR Sensor Module (SM-AFR) features an ultra-efficient redesigned architecture paired with genuine Bosch LSU 4.9 sensor technology.
By utilizing active intelligent Health Monitoring, the Gen 4 module sample-tests your sensor data every 2 milliseconds (488 times per second) to deliver laboratory-grade accuracy, blazing-fast response times, and maximum sensor longevity.
Key Features & Technical Highlights
- Simultaneous Triple-Output Routing: Equipped with three distinct outputs that can all be utilized at the exact same time.
- Wideband Analog (0-5V): Ideal for seamless integration with aftermarket ECUs, piggybacks, and data loggers.
- Narrowband Analog (0-1V): Simulates a factory narrowband sensor signal to feed directly back to your stock ECU.
- Digital Serial Output: Connects flawlessly to a PLX DM-6 gauge or other daisy-chained iMFD multi-gauges.
- Intelligent Sensor Diagnostics: When paired with a compatible PLX gauge, the module provides live-tracking data for real-time battery voltage (9V-20V), current sensor life (0-100%), and exact oxygen sensor reaction speed (10ms-1000ms).
- Multi-Fuel Dynamic Tracking: Fully compatible with Gasoline, Diesel, E85, Ethanol, Methanol, Biodiesel, LPG, and CNG. Accurate down to 0.1 AFR resolution (on gasoline).
- Advanced Soft Start Technology: Safely and gradually warns up the oxygen sensor upon startup, preventing thermal shock and drastically extending its overall service life.
- Rugged & Compact: Housed in a premium, durable aluminum chassis built to survive demanding automotive environments.
- Zero Calibration Needed: Ready to tune right out of the box with digital precision. Every sensor is hand tested.
Gen 3 vs. Gen 4 Performance Comparison
| Feature | Gen 4 Module | Older Gen 3 Module |
| Power Consumption | 7.5 Watts (Highly Efficient) | 10 Watts |
| Response & Warm-Up | Ultra-Fast | Standard |
| Average Service Life | 10+ Years | Variable |
| Accuracy Maintenance | Maintained throughout sensor lifespan | Degrades over time |
| Contamination Resistance | High (Shielded against harsh elements) | Standard |
Important Purchasing Note
No gauge included. This is the standalone module and sensor kit. You will need a multi-gauge display (such as the PLX DM-6) to view your ratios unless you are logging data directly to a 3rd party ECU/software.
- Looking for the Full Combo Kit with Gauge? See Part number: 1099066.
- Looking to purchase the DM-6 Gauge Separately? See Part number: 1099007.
| Note: Images are for illustration purposes only. Images may not represent the product listed. Please contact customer service with any questions or concerns: 1-928-505-2501. |
- Universal
