8946735030 Toyota SENSOR, AIR FUEL RATIO, Price: 208.38$, Weight: 0.164kg


Make Number Name Availability Weight, kg Ship in, Days Price

Toyota

8946735030

SENSOR, AIR FUEL RATIO

0

0.164

2-3

208.38$

Not Available

Compatibility

DescriptionModelOptionsProd PeriodDiagram
RZN140,150,19#,VZN150,195RZN150L-CRMDKABATM,MTM: MANUAL TRANSMISSION; Building Condition: COMPLETELY BUILT UNIT; Cab: EXTRA CAB; Transmission Model: W TYPE TRANSMISSION; Grade: DLX TYPE; Fuel Induction: ELECTRIC FUEL INJECTION SYSTEM; Deck: TRUCK(STANDARD DECK 1-SIDE OPEN); Gear Shift Type: MTM, 5-SPEED FLOOR SHIFT; Engine: (2RZFE) 2400CC EFI; Destination: UNITED STATES OF AMERICA01.1995 - 09.2004 View

Air/Fuel Ratio Sensor for Toyota

This sensor is a key part of the engine control system. It helps the ECU keep the air and fuel mix at the correct ratio for smooth power, low emissions, and good fuel economy ⛽️. When the mixture is right, the catalytic converter also stays protected from overload and overheating.

Why this part is needed

Modern Toyota engines rely on precise feedback from the exhaust stream. This sensor reads oxygen content and mixture quality, so the ECU can fine-tune injector pulse and short/long fuel trims. Without accurate data, the engine cannot self-correct under different loads and temperatures.

How it works

Mounted in the exhaust, the sensor uses an internal element and heater circuit to reach operating temperature fast. It sends a real-time signal to the ECU, allowing closed-loop control during idle, cruise, and acceleration for stable AFR control.

What happens if it fails

Common results include a check engine light, rough idle, hesitation, higher fuel use, fuel smell, and failed emission tests. Prolonged driving with a bad sensor can damage the catalytic converter and cause carbon buildup.

Compatibility

  • Toyota Tacoma