P0133 2003 Infiniti G35 Code - O2 Sensor Circuit Slow Response Bank 1 Sensor 1
Quick Answer
The front heated oxygen sensor (or O2 sensor 1) is placed into the exhaust manifold. Common causes include 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. 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
- P0133 2003 Infiniti G35 indicates O2 Sensor Circuit Slow Response Bank 1 Sensor 1.
- Common causes
- Common causes include 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.
- 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.
Code P0133 2003 Infiniti G35 Description
What are the Possible Causes of the DTC P0133 2003 Infiniti G35?
- 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
How to Fix the DTC P0133 2003 Infiniti G35?
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.
Code Tech Notes
For Infiniti models 2005 and up see: P0133 Infiniti
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0133 2003 Infiniti G35 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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Frequently Asked Questions about P0133 2003 Infiniti G35 Code
1. What are the common symptoms of OBDII code P0133 in a 2003 Infiniti G35?
- Common symptoms include poor fuel economy, rough idle, hesitation during acceleration, and the illumination of the check engine light.
2. What does the OBDII code P0133 "O2 Sensor Circuit Slow Response Bank 1 Sensor 1" mean in a 2003 Infiniti G35?
- This code indicates that the oxygen sensor in Bank 1 Sensor 1 is taking too long to respond to changes in the air-fuel mixture.
3. What are the possible causes of OBDII code P0133 in a 2003 Infiniti G35?
- Possible causes include a faulty oxygen sensor, wiring issues in the O2 sensor circuit, vacuum leaks, exhaust leaks, or a malfunctioning engine control module (ECM).
4. How can I diagnose the O2 sensor circuit slow response issue in my 2003 Infiniti G35?
- You can diagnose the problem by visually inspecting the oxygen sensor and its wiring, checking for vacuum or exhaust leaks, and using a scan tool to monitor the sensor's response time.
5. Can I drive my 2003 Infiniti G35 with an OBDII code P0133?
- It is not recommended to drive with this code for an extended period as it can lead to decreased fuel efficiency and potential damage to the catalytic converter.
6. How do I repair OBDII code P0133 in a 2003 Infiniti G35?
- Repair options include replacing the Bank 1 Sensor 1 oxygen sensor, repairing any damaged wiring, fixing vacuum or exhaust leaks, and resetting the ECM to clear the code.
7. Is it possible for a dirty or contaminated MAF sensor to trigger OBDII code P0133 in a 2003 Infiniti G35?
- Yes, a dirty or contaminated Mass Air Flow (MAF) sensor can affect the air-fuel mixture and potentially lead to a slow response from the oxygen sensor, triggering the P0133 code.
8. Can a failing fuel pressure regulator cause OBDII code P0133 in a 2003 Infiniti G35?
- Yes, a failing fuel pressure regulator can impact the air-fuel ratio, affecting the performance of the oxygen sensor and potentially triggering the P0133 code.
9. How long does it take to repair OBDII code P0133 in a 2003 Infiniti G35?
- The repair time can vary depending on the exact cause of the issue, but it typically takes a few hours to diagnose and fix the problem with the oxygen sensor or related components.
10. Will resetting the check engine light clear OBDII code P0133 in a 2003 Infiniti G35?
- Resetting the check engine light may temporarily clear the code, but it will likely return if the underlying issue causing the slow response from the O2 sensor is not addressed.
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