AutoCodes – Toyota – P1130 Toyota

P1130 Toyota Code - Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction Bank 1 Sensor 1

Quick Answer

The Air-Fuel ratio (A/F) sensor varies its output voltage in proportion to the air-fuel ratio. Common causes include Faulty Air fuel Ratio (A/F) Bank 1 Sensor 1, Air fuel Ratio (A/F) Bank 1 Sensor 1 harness is open or shorted, Air fuel Ratio (A/F) Bank 1 Sensor 1 circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1130 Toyota indicates Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction Bank 1 Sensor 1.
Common causes: Common causes include Faulty Air fuel Ratio (A/F) Bank 1 Sensor 1, Air fuel Ratio (A/F) Bank 1 Sensor 1 harness is open or shorted, Air fuel Ratio (A/F) Bank 1 Sensor 1 circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 140,304

How popular is this code, among other codes? Medium

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 27, 2019

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1130 Toyota 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 P1130 Toyota - Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction Bank 1 Sensor 1 - AutoCodes.com — P1130 Toyota Code - Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction Bank 1 Sensor 1

What does this mean?

What are the Possible Causes of the DTC P1130 Toyota?

Faulty Air fuel Ratio (A/F) Bank 1 Sensor 1
Air fuel Ratio (A/F) Bank 1 Sensor 1 harness is open or shorted
Air fuel Ratio (A/F) Bank 1 Sensor 1 circuit poor electrical connection
Fuel pressure
Fuel injector
Intake air leaks

How to Fix the DTC P1130 Toyota?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1130 Toyota code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P1130 Toyota code?

Need more information on how to fix the P1130 Toyota code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1130 Toyota code diagnosed by a professional: Find a repair shop in your area

Information for Specific Toyota Models

P1130 1997 Toyota Camry — A/F Sensor Circuit Range/Performance Malfunction
P1130 1998 Toyota Camry — A/F Sensor Circuit Range/Performance Malfunction
P1130 1999 Toyota Camry — A/F Sensor Circuit Range/Performance Malfunction
P1130 2000 Toyota Camry — A/F Sensor Circuit Range/Performance Malfunction
P1130 2001 Toyota Camry — A/F Sensor Circuit Range/Performance Malfunction
P1130 Toyota RAV4 — Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction Bank 1 Sensor 1

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1130 Toyota Code

What does the OBDII code P1130 mean for a Toyota?

P1130 indicates an issue with the air/fuel ratio sensor circuit on Bank 1 Sensor 1, meaning the sensor is not performing within its expected range.

What are the common symptoms of code P1130 in a Toyota?

Symptoms include poor fuel economy, rough idling, hesitation during acceleration, and an illuminated check engine light.

What causes the P1130 code to appear in a Toyota?

Common causes include a faulty air/fuel ratio sensor, wiring issues, a vacuum leak, exhaust leaks, or problems with the engine control module (ECM).

How do I locate Bank 1 Sensor 1 in my Toyota?

Bank 1 refers to the side of the engine with cylinder 1, and Sensor 1 is the upstream sensor located before the catalytic converter.

Can the P1130 code cause drivability issues?

Yes, it can lead to rough engine performance, reduced power, and increased emissions due to improper air/fuel mixture.

How is the P1130 code diagnosed in a Toyota?

A mechanic will use an OBDII scanner to confirm the code, inspect the air/fuel ratio sensor, check for wiring damage, and examine for vacuum or exhaust leaks.

Can I continue driving with the P1130 code in my Toyota?

While the vehicle may still be drivable, it’s not recommended to ignore this code as it can lead to further engine damage or higher emissions over time.

How do you fix the P1130 code in a Toyota?

Repairs may involve replacing the air/fuel ratio sensor, repairing damaged wiring, fixing vacuum or exhaust leaks, or updating/reprogramming the ECM.

How much does it cost to fix the P1130 code in a Toyota?

Repair costs vary depending on the issue, but replacing an air/fuel ratio sensor typically costs between $200 and $400, including parts and labor.

Can a dirty air filter trigger the P1130 code?

While unlikely, a severely clogged air filter could contribute to incorrect air/fuel mixture readings, so it’s worth checking as part of the diagnosis.