AutoCodes - Toyota - P0133 2002 TOYOTA COROLLA

P0133 2002 TOYOTA COROLLA Code - HO2S11 Circuit Slow Response 3ZZ-FE Engine

Repair Importance Level: 2/3
Repair Difficulty Level: 2/3
Table of contents

|P0133 2002 TOYOTA COROLLA code possible causes

  • Faulty Front Heated Oxygen Sensor Bank 1
  • Front Heated Oxygen Sensor Bank 1 harness is open or shorted
  • Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection
  • Inappropriate fuel pressure
  • Faulty fuel injectors
  • Intake air leaks may be faulty
  • Exhaust gas leaks
  • EFI Relay

|How do I fix the P0133 2002 TOYOTA COROLLA code?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

|Cost of diagnosing the P0133 2002 TOYOTA COROLLA code

Labor: 1.0

The cost of diagnosing the P0133 2002 TOYOTA COROLLA code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|When is the P0133 2002 TOYOTA COROLLA code detected?

The response of the voltage signal from the sensor takes more than the specified time.

|What are P0133 2002 TOYOTA COROLLA code possible symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)
  • High Fuel Consumption
  • Excessive Smoke from Exhaust

|P0133 2002 TOYOTA COROLLA code description

The front heated oxygen sensor (or O2 sensor 1) is placed into the exhaust manifold. It detects the amount of oxygen in the exhaust gas compared to the outside air. The heated oxygen sensor 1 has a closed-end tube made of ceramic zirconia. The zirconia generates voltage from approximately 1V in richer conditions to 0V in leaner conditions. The heated oxygen sensor 1 signal is sent to the Engine Control Module (ECM). The ECM adjusts the injection pulse duration to achieve the ideal air-fuel ratio.
Lean 0.35 V or less
Rich 0.45 V or more
OBDII Code P0133 2002 Toyota Corolla - HO2S11 Circuit Slow Response 3ZZ-FE Engine  - AutoCodes.com

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|P0133 2002 TOYOTA COROLLA code comments

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Repair Importance Level: 2
 
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