LF8R188G1A Mazda SENSOR,AIR & FUEL RATIO, Price: 93.48$, Weight: 0.133kg
| Make | Number | Name | Availability | Weight, kg | Ship in, Days | Price |
|---|---|---|---|---|---|---|
Mazda |
LF8R188G1A |
SENSOR,AIR & FUEL RATIO |
3 |
0.133 |
7-10 |
93.48$ |
Originals
| Make | Number | Name | Availability | Weight, kg | Processing, days | Price | |
|---|---|---|---|---|---|---|---|
| Mazda |
SENSOR,AIR & FUEL RATIO
|
98 |
0.153
|
2-3
|
114.20$
|
Air & Fuel Ratio Sensor (Upstream) ?
This sensor is vital for keeping the engine mixture correct. It helps the ECU balance how much air and fuel enter the cylinders, so your Mazda runs smooth, starts easy, and meets emission limits. A healthy signal also protects the catalytic converter and supports better fuel economy.
How It Works ⚙️
Mounted in the exhaust stream, the sensing element measures oxygen content in the gases. It sends a fast, precise voltage/current signal to the ECU. The ECU then adjusts injector pulse and, when needed, ignition trimming to keep the mixture near ideal during cruising, idling, and light acceleration.
Why Replacement Matters ✅
When the sensor becomes slow, contaminated (oil/coolant), or the heater circuit fails, the ECU may switch to a backup strategy. That often means richer fueling, unstable idle, reduced power, and higher emissions.
Common Signs of Failure ?
- Check Engine Light and mixture-related fault codes
- High fuel consumption, fuel smell from exhaust
- Rough idle, hesitation, poor throttle response
- Failed emissions test or catalytic converter damage over time
Compatibility ✅
- Mazda 3
- Mazda 5