P1147 2005 Nissan Maxima Code - Heated Oxygen Sensor 2 Maximum Voltage Monitoring Bank 1
Quick Answer
The Heated Oxygen Sensor 2 (HO2S) (Rear O2 Sensor), after three way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank. Common causes include Faulty heated oxygen (O2) sensor 2 (rear), Intake air leaks, Heated oxygen (O2) sensor 2 (rear) harness is open or shorted. 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
- P1147 2005 Nissan Maxima indicates Heated Oxygen Sensor 2 Maximum Voltage Monitoring Bank 1.
- Common causes
- Common causes include Faulty heated oxygen (O2) sensor 2 (rear), Intake air leaks, Heated oxygen (O2) sensor 2 (rear) harness is open or shorted.
- 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 P1147 2005 Nissan Maxima Description
What are the Possible Causes of the DTC P1147 2005 Nissan Maxima?
- Faulty heated oxygen (O2) sensor 2 (rear)
- Intake air leaks
- Heated oxygen (O2) sensor 2 (rear) harness is open or shorted
- Heated oxygen (O2) sensor 2 (rear) circuit poor electrical connection
- Inappropriate fuel pressure
- Faulty fuel injectors
How to Fix the DTC P1147 2005 Nissan Maxima?
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 P1147 2005 Nissan Maxima 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 P1147 2005 Nissan Maxima Code
1. What does the OBDII code P1147 mean on a 2005 Nissan Maxima?
P1147 indicates that the Heated Oxygen Sensor 2 (Bank 1) has detected a voltage that exceeds the maximum threshold, suggesting a malfunction.
2. What are the symptoms of the P1147 code on a Nissan Maxima?
Common symptoms include poor fuel economy, rough idling, hesitation during acceleration, and the illumination of the check engine light.
3. What causes the P1147 code to appear on a 2005 Nissan Maxima?
Possible causes include a faulty oxygen sensor, damaged wiring or connectors, an exhaust leak, or issues with the engine control module (ECM).
4. Which oxygen sensor is involved in the P1147 code on a Nissan Maxima?
The code refers to the downstream oxygen sensor (Sensor 2) on Bank 1, which monitors the efficiency of the catalytic converter.
5. Can a bad catalytic converter cause the P1147 code?
Yes, a failing catalytic converter can cause abnormal oxygen sensor readings, triggering the P1147 code.
6. How do you diagnose the P1147 code on a 2005 Nissan Maxima?
Diagnosis involves checking the oxygen sensor and its wiring for damage, testing the sensor's voltage output, inspecting for exhaust leaks, and verifying ECM operation.
7. Can I drive my 2005 Nissan Maxima with the P1147 code?
While the car may still be drivable, prolonged driving with this code can lead to further damage, reduced fuel efficiency, and increased emissions.
8. How do you fix the P1147 code on a Nissan Maxima?
Repairs may include replacing the faulty oxygen sensor, repairing damaged wiring or connectors, fixing any exhaust leaks, or reprogramming the ECM if needed.
9. How much does it cost to repair the P1147 code on a 2005 Nissan Maxima?
The cost can vary, but replacing the oxygen sensor typically ranges from $150 to $300, depending on parts and labor rates.
10. Can a dirty air filter cause the P1147 code on a Nissan Maxima?
A dirty air filter is unlikely to directly cause this code, but it can contribute to poor engine performance, which may indirectly affect oxygen sensor readings.
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