8946728100 Toyota SENSOR, AIR FUEL RATIO, NO.2, Price: 135.07$, Weight: 0.127kg
| Make | Number | Name | Availability | Weight, kg | Ship in, Days | Price |
|---|---|---|---|---|---|---|
Toyota |
8946728100 |
SENSOR, AIR FUEL RATIO, NO.2 |
0 |
0.127 |
7-10 |
135.07$ |
| Not Available | ||||||
Originals
| Make | Number | Name | Availability | Weight, kg | Processing, days | Price | |
|---|---|---|---|---|---|---|---|
| Toyota |
SENSOR, AIR FUEL RATIO, NO.2
|
1 |
0.146
|
2-3
|
154.53$
|
Substitutions
| Make | Number | Name | Availability | Weight, kg | Processing, days | Price | |
|---|---|---|---|---|---|---|---|
| Toyota |
SENSOR ENGINE OIL
|
0 |
0.171
|
-
|
111.37$
|
Not Available |
Compatibility
| Description | Model | Options | Prod Period | Diagram |
|---|---|---|---|---|
| ACR5#,GSR5# | GSR55W-GRTSK | ATM,MTM: AUTOMATIC TRANSMISSION; Seating Capacity: 8-SEATER; Building Condition: COMPLETELY BUILT UNIT; Grade: AERAS TYPE; Gear Shift Type: ATM, 6-SPEED FLOOR SHIFT; Engine: (2GRFE) 3500CC 24-VALVE DOHC EFI | 01.2006 - 05.2016 | View |
| Description | Model | Options | Prod Period | Diagram |
|---|---|---|---|---|
| ACR50,GSR50 | GSR50R-GRTDKQ | ATM,MTM: AUTOMATIC TRANSMISSION; Seating Capacity: 8-SEATER; Driver's Position: RIGHT-HAND DRIVE VEHICLES; Grade: DLX TYPE; Gear Shift Type: ATM, 6-SPEED FLOOR SHIFT; Engine: (2GRFE) 3500CC 24-VALVE DOHC EFI; Destination: AUSTRALIA | 11.2006 - 10.2019 | View |
Air/Fuel Ratio Sensor (Downstream) for Toyota Engines
⚙️ This sensor is a key part of the exhaust feedback system. It’s needed to help the ECU keep the mixture close to ideal, so the engine runs smooth, saves fuel, and protects the catalytic converter. Unlike a basic oxygen sensor, it reads mixture changes faster and more precisely, helping the computer fine-tune injection and long-term fuel trim.
How It Works
🔥 Installed in the exhaust stream, the sensing element compares oxygen content and generates a signal the ECU understands. A built-in heater brings it up to operating temperature quickly, so cold-start control improves and emissions stay lower. When the ECU sees rich/lean trends, it adjusts injector pulse and keeps combustion stable during idle, cruise, and load.
Why Replacement Matters
🚗 If this sensor gets tired, contaminated, or the heater circuit fails, the ECU may over-correct fueling. Expect rough idle, higher fuel use, slow response, failed emissions tests, sulfur/rotten smell, and potential catalytic converter damage over time. A bad signal can also trigger a check engine light and cause inconsistent power.
Common Signs of Failure
- Check engine light with mixture/oxygen related codes
- Poor fuel economy and hesitation
- Unstable idle or rich exhaust smell
Compatible Models
- Estima
- Previa/Tarago