P0145 Nissan Code - Heated Oxygen Sensor 3 Circuit Slow Response
Quick Answer
The P0145 code for Nissan vehicles indicates a problem with the Heated Oxygen Sensor (HO2S) 3 Circuit having a slow response time. Common causes include Faulty Heated Oxygen Sensor (HO2S), Wiring or connector issues in the HO2S circuit, Exhaust leaks near the sensor. 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
- P0145 Nissan indicates Heated Oxygen Sensor 3 Circuit Slow Response.
- Common causes
- Common causes include Faulty Heated Oxygen Sensor (HO2S), Wiring or connector issues in the HO2S circuit, Exhaust leaks near the sensor.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P0145 Nissan Description
The P0145 code for Nissan vehicles indicates a problem with the Heated Oxygen Sensor (HO2S) 3 Circuit having a slow response time. The HO2S is responsible for measuring the oxygen content in the exhaust gases and sending this information to the engine control module (ECM) to adjust the air-fuel mixture for optimal combustion. When the sensor takes too long to respond, it can lead to issues with the engine's performance and emissions.
Common Causes of P0145 Nissan
- Faulty Heated Oxygen Sensor (HO2S)
- Wiring or connector issues in the HO2S circuit
- Exhaust leaks near the sensor
- Contaminated sensor due to engine oil or coolant leaks
- ECM software issues
Symptoms of P0145 Nissan
- Decreased fuel efficiency
- Rough idling or stalling
- Engine hesitation or misfiring
- Check Engine Light illuminated
- Increased emissions
How to Fix P0145 Nissan
- Use an OBD-II scanner to read the code and confirm the P0145 diagnosis.
- Inspect the wiring and connectors in the HO2S circuit for any damage or corrosion.
- Check for exhaust leaks near the sensor and repair as necessary.
- Replace the Heated Oxygen Sensor 3 with a new, OEM-quality sensor.
- Clear the code and test drive the vehicle to ensure the issue is resolved.
Cost to Fix P0145 Nissan
The typical repair costs for addressing a P0145 code on a Nissan vehicle can range from $150 to $400, including parts and labor. The specific diagnosis time and labor rates at auto repair shops can vary, so it is recommended to check with local shops for a more accurate estimate. Keep in mind that rates may be higher at dealerships or in metropolitan areas, while independent shops may offer more affordable pricing for the repair.
Need more information about the P0145 Nissan code?
Need more information on how to fix the P0145 Nissan code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0145 Nissan code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0145 Nissan Code
No Frequently Asked Questions about P0145 Nissan Code found.
Discuss the causes and fixes for P0145 Nissan OBDII Code
Code P0145 Nissan comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.