AutoCodes – Toyota – P0136 1998 Toyota Camry

P0136 1998 Toyota Camry Code - Heated Oxygen Sensor Circuit Malfunction Bank 1 Sensor 2

Quick Answer

The heated oxygen sensor 2 (HO2S), after three way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank. Common causes include Faulty Rear Heated Oxygen Sensor Bank 1, Rear Heated Oxygen Sensor Bank 1 harness is open or shorted, Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means: P0136 1998 Toyota Camry indicates Heated Oxygen Sensor Circuit Malfunction Bank 1 Sensor 2.
Common causes: Common causes include Faulty Rear Heated Oxygen Sensor Bank 1, Rear Heated Oxygen Sensor Bank 1 harness is open or shorted, Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection.
Severity: Moderate - service should be scheduled soon.
Can I drive?: The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

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Code Popularity 11,987

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0136 1998 Toyota Camry Description

The heated oxygen sensor 2 (HO2S), after three way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank. For optimum catalyst operation, the air fuel mixture (air-fuel ratio) must be maintained near the ideal stoichiometric ratio. The HO2S output voltage changes suddenly in the vicinity of the stoichiometric ratio. The Engine Control Module (ECM) adjusts the fuel injection time so that the air-fuel ratio is nearly stoichiometric. The HO2S generates a voltage between 0.1 and 0.9 V in response to oxygen in the exhaust gas. If the oxygen in the exhaust gas increases, the air-fuel ratio becomes Lean. The ECM interprets Lean when the HO2S voltage is below 0.45 V. If the oxygen in the exhaust gas decreases, the air-fuel ratio becomes Rich. The ECM interprets Rich when the HO2S voltage is above 0.45 V.

OBDII Code P0136 1998 Toyota Camry - Heated Oxygen Sensor Circuit Malfunction Bank 1 Sensor 2 - AutoCodes.com — P0136 1998 Toyota Camry Code - Heated Oxygen Sensor Circuit Malfunction Bank 1 Sensor 2

What does this mean?

What are the Possible Causes of the DTC P0136 1998 Toyota Camry?

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

How to Fix the DTC P0136 1998 Toyota Camry?

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 does this mean?

Code Tech Notes

Replacing the Rear Heated Oxygen Sensor Bank 1 usually takes care of the problem.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0136 1998 Toyota Camry 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.

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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 P0136 1998 Toyota Camry Code

1. What does the OBDII code P0136 for a 1998 Toyota Camry indicate?

The code P0136 signals a Heated Oxygen Sensor Circuit Malfunction for Bank 1 Sensor 2.

2. What are the common symptoms of a P0136 code in a 1998 Toyota Camry?

Common symptoms include poor fuel efficiency, rough idling, engine misfires, and the illumination of the Check Engine Light.

3. What are the potential causes of a P0136 code in a 1998 Toyota Camry?

Possible causes include a faulty oxygen sensor, damaged wiring or connectors, exhaust leaks, or issues with the engine's fuel system.

4. How can I diagnose the underlying issue causing the P0136 code in my 1998 Toyota Camry?

Diagnosing the problem involves checking the oxygen sensor's wiring and connectors, inspecting the sensor for damage, and testing the sensor's voltage output.

5. Can I still drive my 1998 Toyota Camry with a P0136 code?

While you may still be able to drive the vehicle, it is recommended to address the issue promptly to prevent potential damage to the engine and ensure optimal fuel efficiency.

6. Is it possible to repair a P0136 code in a 1998 Toyota Camry without professional help?

Simple repairs such as replacing the oxygen sensor or repairing damaged wiring can often be done at home with the right tools and knowledge.

7. How much does it typically cost to fix a P0136 code in a 1998 Toyota Camry?

The cost of repairs can vary depending on the exact cause of the issue, but it may range from $100 to $300 for DIY repairs or $200 to $500 at a repair shop.

8. Are there any preventive measures to avoid encountering a P0136 code in a 1998 Toyota Camry?

Regularly maintaining your vehicle, including scheduled oxygen sensor inspections and replacements, can help prevent issues that lead to a P0136 code.

9. Can a P0136 code in a 1998 Toyota Camry affect the vehicle's emissions or cause it to fail an emissions test?

Yes, a P0136 code can impact the vehicle's emissions output, potentially leading to a failed emissions test if not addressed promptly.

10. How long does it take to repair a P0136 code in a 1998 Toyota Camry?

The repair time can vary based on the exact cause of the issue and your level of experience. Simple repairs may take an hour or two, while more complex issues could require more time or professional assistance.