P1133 Toyota Code - Air/Fuel Ratio Sensor Circuit Response 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 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. 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
- P1133 Toyota indicates Air/Fuel Ratio Sensor Circuit Response Malfunction Bank 1 Sensor 1.
- Common causes
- Common causes include 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.
- 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.
Code P1133 Toyota Description
What are the Possible Causes of the DTC P1133 Toyota?
- 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 to Fix the DTC P1133 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 P1133 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 P1133 Toyota code?
Need more information on how to fix the P1133 Toyota code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1133 Toyota code diagnosed by a professional: Find a repair shop in your area
Information for Specific Toyota Models
- P1133 1997 Toyota Camry — Air/Fuel Ratio Sensor Circuit Response Malfunction Bank 1 Sensor 1
- P1133 1998 Toyota Camry — Air/Fuel Ratio Sensor Circuit Response Malfunction Bank 1 Sensor 1
- P1133 1999 Toyota Camry — Air/Fuel Ratio Sensor Circuit Response Malfunction Bank 1 Sensor 1
- P1133 2000 Toyota Camry — Air/Fuel Ratio Sensor Circuit Response Malfunction Bank 1 Sensor 1
- P1133 2001 Toyota Camry — Air/Fuel Ratio Sensor Circuit Response Malfunction Bank 1 Sensor 1
- P1133 Toyota RAV4 — Air/Fuel Ratio Sensor Circuit Response Malfunction Bank 1 Sensor 1
Frequently Asked Questions about P1133 Toyota Code
1. What are the common symptoms of OBDII code P1133 on a Toyota?
- Common symptoms include poor fuel economy, rough idle, decreased engine performance, and potential stalling.
2. What does the OBDII code P1133 for a Toyota indicate?
- The code indicates a malfunction in the air/fuel ratio sensor circuit for Bank 1 Sensor 1, which is typically located in the exhaust manifold.
3. What are some possible causes of the P1133 code in a Toyota?
- Possible causes include a faulty air/fuel ratio sensor, wiring issues, exhaust leaks, vacuum leaks, or a problem with the engine control module (ECM).
4. How can I diagnose the P1133 code on my Toyota?
- Diagnosis usually involves visually inspecting the sensor and its wiring, checking for any leaks in the exhaust system, and using a scan tool to monitor sensor data.
5. Can I continue driving my Toyota with the P1133 code illuminated?
- It is not recommended to drive with the code illuminated, as it can lead to decreased fuel efficiency and potential engine damage if left unattended.
6. How do I repair the P1133 code on my Toyota?
- Repair may involve replacing the air/fuel ratio sensor, repairing any damaged wiring, fixing exhaust leaks, or reprogramming the ECM.
7. Are there any specific tips for preventing the recurrence of the P1133 code on a Toyota?
- Regular maintenance, such as ensuring proper engine tune-ups and addressing any issues promptly, can help prevent the recurrence of the code.
8. Is it possible to clear the P1133 code on a Toyota without fixing the underlying issue?
- While clearing the code may temporarily turn off the check engine light, it will not fix the underlying issue causing the malfunction.
9. Can a DIY enthusiast with basic automotive skills repair the P1133 code on a Toyota?
- Depending on the cause of the code, some repairs may be straightforward for individuals with basic automotive skills, while others may require professional assistance.
10. How long does it typically take to repair the P1133 code on a Toyota?
- The repair time can vary depending on the exact cause of the code and the complexity of the repair, ranging from a few hours to a full day at a repair shop.
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