AutoCodes - OBDII Code List - P1133 LEXUS

P1133 LEXUS - Air/Fuel Ratio Sensor Circuit Response Malfunction Bank 1 Sensor 1

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3    What is this?
Table of contents

P1133 LEXUS Possible Causes

  • Faulty Air/Fuel Ratio Sensor Bank 1 Sensor 1
  • Air/Fuel Ratio Sensor Bank 1 Sensor 1 harness is open or shorted
  • Air/Fuel Ratio Sensor Bank 1 Sensor 1 circuit poor electrical conection

How do I fix code P1133 LEXUS?

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.
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Cost of diagnosing the P1133 LEXUS code

Labor: 1.0

The cost of diagnosing the P1133 LEXUS code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1133 LEXUS Description

The Air-Fuel ratio (A/F) sensor varies its output voltage in proportion to the air-fuel ratio. Based on the output voltage, the Engine Control Module (ECM) determines if the air-fuel ratio is RICH or LEAN and adjusts the stoichiometric air-fuel ratio. The ECM also checks the fuel injection volume compensation value to check if the A/F sensor is deteriorating or not. A/F sensor response deterioration is determined by the ratio of the A/F sensor output voltage variation and fuel trim variation.
OBDII Code P1133 Lexus - Air/Fuel Ratio Sensor Circuit Response Malfunction Bank 1 Sensor 1 - AutoCodes.com

More Information

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