P1148 Nissan Code - Closed Loop Control Function Bank 1
Quick Answer
The P1148 Nissan code refers to an issue with the Closed Loop Control Function in Bank 1 of the vehicle's engine. Common causes include Faulty oxygen sensor, Vacuum leaks, Issues with the fuel system. 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
- P1148 Nissan indicates Closed Loop Control Function Bank 1.
- Common causes
- Common causes include Faulty oxygen sensor, Vacuum leaks, Issues with the fuel system.
- 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.
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Code P1148 Nissan Description
The P1148 Nissan code refers to an issue with the Closed Loop Control Function in Bank 1 of the vehicle's engine. In a closed-loop system, the vehicle's computer (ECU) constantly monitors and adjusts the air-fuel mixture to optimize engine performance and emissions. Bank 1 typically refers to the side of the engine where cylinder 1 is located. When this code is triggered, it indicates that the closed-loop control function on Bank 1 is not operating within the expected parameters. This can lead to poor fuel efficiency, reduced engine performance, and increased emissions. If left unaddressed, it can potentially cause damage to the catalytic converter and other engine components.
Common Causes of P1148 Nissan
- Faulty oxygen sensor
- Vacuum leaks
- Issues with the fuel system
- Exhaust system leaks
- Wiring or connector problems
Symptoms of P1148 Nissan
- Decreased fuel efficiency
- Rough idling or stalling
- Engine misfires
- Illuminated check engine light
- Failed emissions test
How to Fix P1148 Nissan
- Diagnose the specific cause of the issue by using a scan tool to read live data and check the oxygen sensor's voltage readings.
- Inspect and replace the oxygen sensor if it is determined to be faulty.
- Check for and repair any vacuum leaks in the system.
- Inspect the fuel system for any issues and address accordingly.
- Clear the code and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P1148 Nissan
The cost of repairing a P1148 Nissan code can vary depending on the specific cause of the issue. In general, replacing an oxygen sensor can cost between $100 and $250, including parts and labor. However, if additional repairs or parts replacements are necessary, the total cost could increase. It's recommended to consult with a mechanic or auto repair shop for an accurate cost estimate based on your vehicle's make and model.
Tech Notes for P1148 Nissan
2005 Nissan Altima
2006 Nissan Altima
2005-2006 Nissan Altima Factory Service Bulletin P1148 OBDII Code
2004 Nissan Maxima w/ 5 Speed Automatic Transmission
2004 Nissan Quest w/ 5 Speed Automatic Transmission
2004 Nissan Maxima, Quest Factory Service Bulletin P1148 OBDII Code
2004 Nissan Maxima w/ Manual Transmission or 4 Speed Automatic Transmission
2004 Nissan Quest w/ 4 Speed Automatic Transmission
2004 Nissan Maxima, Quest Factory Service Bulletin P1148 OBDII Code
2004 Nissan Armada
2004 Nissan Titan
2004 Nissan Armada/Titan Factory Service Bulletin OBDII Code P1148
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Information for Specific Nissan Models
- P1148 2002 Nissan Altima Sedan — Closed Loop Control Function Bank 1
- P1148 2003 Nissan Altima Sedan — Closed Loop Control Function Bank 1
- P1148 2004 Nissan Altima Sedan — Closed Loop Control Function Bank 1
- P1148 2005 Nissan Altima Sedan — Closed Loop Control Function Bank 1
- P1148 2006 Nissan Altima Sedan — Closed Loop Control Function Bank 1
- P1148 2008 Nissan Altima Sedan — Closed Loop Control Function Bank 1
- P1148 2009 Nissan Altima Sedan — Closed Loop Control Function Bank 1
- P1148 2010 Nissan Altima Sedan — Closed Loop Control Function Bank 1
- P1148 2011 Nissan Altima Sedan — Closed Loop Control Function Bank 1
- P1148 2012 Nissan Altima Sedan — Closed Loop Control Function Bank 1
- P1148 2004 Nissan Maxima — Closed Loop Control Function Bank 1
- P1148 2005 Nissan Maxima — Closed Loop Control Function Bank 1
- P1148 2006 Nissan Maxima — Closed Loop Control Function Bank 1
- P1148 2007 Nissan Maxima — Closed Loop Control Function Bank 1
- P1148 2008 Nissan Maxima — Closed Loop Control Function Bank 1
- P1148 2005 Nissan Pathfinder — Closed Loop Control Function Bank 1
- P1148 2006 Nissan Pathfinder — Closed Loop Control Function Bank 1
- P1148 2007 Nissan Pathfinder — Closed Loop Control Function Bank 1
- P1148 2008 Nissan Pathfinder — Closed Loop Control Function Bank 1
- P1148 2009 Nissan Pathfinder — Closed Loop Control Function Bank 1
- P1148 2010 Nissan Pathfinder — Closed Loop Control Function Bank 1
- P1148 2011 Nissan Pathfinder — Closed Loop Control Function Bank 1
- P1148 2012 Nissan Pathfinder — Closed Loop Control Function Bank 1
- P1148 2008 Nissan Rogue — Closed Loop Control Function Bank 1
- P1148 2009 Nissan Rogue — Closed Loop Control Function Bank 1
- P1148 2010 Nissan Rogue — Closed Loop Control Function Bank 1
- P1148 2011 Nissan Rogue — Closed Loop Control Function Bank 1
- P1148 2012 Nissan Rogue — Closed Loop Control Function Bank 1
- P1148 2013 Nissan Rogue — Closed Loop Control Function Bank 1
- P1148 2007 Nissan Sentra — Closed Loop Control Function Bank 1
- P1148 2008 Nissan Sentra — Closed Loop Control Function Bank 1
- P1148 2009 Nissan Sentra — Closed Loop Control Function Bank 1
- P1148 2010 Nissan Sentra — Closed Loop Control Function Bank 1
- P1148 2011 Nissan Sentra — Closed Loop Control Function Bank 1
- P1148 2012 Nissan Sentra — Closed Loop Control Function Bank 1
Frequently Asked Questions about P1148 Nissan Code
1. What does OBDII code P1148 for Nissan mean?
This code indicates an issue with the Closed Loop Control Function Bank 1, specifically related to the fuel control system.
2. What are the common symptoms of OBDII code P1148 in a Nissan vehicle?
Common symptoms include decreased fuel efficiency, rough idling, engine misfires, and potentially an illuminated Check Engine Light.
3. What are the possible causes of OBDII code P1148 in a Nissan?
Potential causes include a faulty oxygen sensor, issues with the fuel injectors, a vacuum leak, a malfunctioning Mass Air Flow (MAF) sensor, or a problem with the engine coolant temperature sensor.
4. How can I diagnose the OBDII code P1148 in my Nissan?
Diagnosis typically involves using an OBDII scanner to retrieve the code, followed by inspecting the oxygen sensor, fuel injectors, vacuum lines, MAF sensor, and coolant temperature sensor for any issues.
5. How serious is OBDII code P1148 in a Nissan?
While the vehicle may still be operable with this code, it is important to address it promptly to prevent potential damage to the engine and ensure optimal fuel efficiency.
6. Can I continue driving my Nissan with OBDII code P1148?
It is generally not recommended to continue driving with this code present, as it can lead to poor engine performance and increased fuel consumption.
7. How much does it cost to repair OBDII code P1148 in a Nissan?
The cost of repairs can vary depending on the specific cause of the code, but it is advisable to budget for potential expenses related to sensor replacements or repairs to the fuel system.
8. Are there any DIY repair tips for OBDII code P1148 in a Nissan?
DIY tips include checking for vacuum leaks, cleaning or replacing the oxygen sensor, inspecting the MAF sensor for dirt or debris, and ensuring proper coolant temperature sensor functionality.
9. Can a mechanic reset the OBDII code P1148 in my Nissan after repairs?
Yes, a mechanic can reset the code using an OBDII scanner after performing the necessary repairs to address the underlying issue.
10. How can I prevent OBDII code P1148 from recurring in my Nissan?
Regular maintenance, such as replacing sensors at recommended intervals, addressing any fuel system issues promptly, and ensuring the engine is well-tuned, can help prevent the recurrence of this code.
Discuss the causes and fixes for P1148 Nissan OBDII Code
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my 2007 nissan sentra 2liter in showing a p1148 code and p0031 code how should i go about diagnosis and whats the next step i should do? can you also show me a picture of where these items are located
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you ever get this fixed? my 2007 sentra is showing hte same 2 codes now...
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P0031 NISSAN - Air Fuel Ratio Sensor 1 Heater Bank 1 Control Circuit Low
P1148 NISSAN - Closed Loop Control Function Sensor 1 Bank 1You should start by replacing the front (Air/Fuel Sensor) O2 sensor.
Attached images show sensor location. First images is for "QR" engine and second one for "MR" engine
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I have an 06 Max 3.5, it's giving me 6 codes: P0031, P1148, P1168, P0037, P0057, P0051. It states their may be an open circuit or shorted circuit, where can I find this circuit? Any Ideas?...
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Each code represent a component in your vehicle. Each component has a wires from the component itself to the Engine Control Module (ECM) and body grounds. The circuit includes the wire from the component to the ECM and ground, and the components internal wiring.
Since all the codes are circuit related codes, start by checking all the fuses. If the fuses are OK, clear all the codes and working with the first code that comes back.
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2009 Nissan Versa 1.6L Sedan with P1148, P0171 (twice), P0133 (4 times) showing... Please Advise. Thanks :)
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You probably have to replaced the Air Fuel Ratio Sensor 1.
Sensors location: http://nissanhelp.com/diy/v...
P0171 NISSAN - Fuel Injection System Too Lean Bank 1Read more: https://www.autocodes.com/p01...
P0133 NISSAN - Air Fuel Ratio Circuit Slow Response Bank 1 Sensor 1Read more: https://www.autocodes.com/p01...
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I have an Altima 2006 and has the error code P1148 Closed loop Control, what does that mean? And how can I resolve that? Would you help me?
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Please read the information above. It means that you probably have a faulty Air Fuel Ratio Sensor 1 Bank 1 and that you have to replace the sensor to fix the problem.
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I have 2003 Nissan 1.8 GXE. Recently I have replaced MAF sensor. However now I am getting P1148. My Mechanic is suggesting me to change the O2 sensors. He said there are 2 Oxygen sensors. Its better to replace both of them. And charging me 150$ each with labor and part.
Car drives good. Mileage is also good. Please suggest! -
Hello I have a 99 nissan altima , that has the code p1148 appear , so I decided to change both sensors and I erased the codes and
drive it for about 20 miles and it appeared again ,could anyone help with this problem,would truly appreciate it. -
Usually the sensor fix the problem. Did you use the new factory O2 sensors? Did you get the same exact code? are there any exhaust leaks near the sensor?
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Hi..I'm joe I got a Nissan Quest 2000 and check engine is ON problem is code po130 2circuit bank1 sensor1,where can I find this? Second problems is code po1148.guys pls help this,thanks a lot appreciate it joe..
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P0130 Nissan - O2 Sensor Circuit Malfunction Bank 1 Sensor 1
Read more: https://www.autocodes.com/p01...The bad O2 sensor could be the cause of both codes. You should start by replace the sensor first.
The sensor is in front of the engine. The attached image shows the sensor connector.
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I have an Nissan se-r 2002 and I have a lot of codes , p0031 p1148 p0132 p0101p0103 p1102 p0183 p0463 p2127 p2128 p0113, can u help me with this codes , and my car got wet and ever since then my car hasn't been functioning well
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Start by erasing all the code (with scanner or disconnecting the car battery) and then check what code comes back first. Make sure the battery terminal are fully connected and there are no exhaust and intakes leaks, Most all the codes you listed could be caused by intake leaks near the Mass Air Flow (MAF) sensor.
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i have a 2003 with the same code p1148 but the car surges and jerks like if its running out of fuel but just installed fuel pump would that code cause that problem? or it would be a different problem
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I have a nissan sentra 2006 and showing codes p0128 p1148 p2a00 p0128 p0133 my car shakings really bad at points while im driving it.. It also acts like it doeant want to pick up speed what can it be??? Please help me
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The P1148, P2a00, P0133 codes are for O2 sensor, but the O2 sensor should not cause the engine to run rough. The P0128 is for the thermostat, an stuck thermostat could cause the engine to run rough, but when is cold.
Have the engine overheated lately? sounds like you could have a blow head gasket. I recommend starting by performing a compression or leak down test.
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No, the P1148 code is for the O2 sensor, but a bad O2 sensor should not cause the engine to surge. I recommend checking the fuel pump instillation.
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The sensor is on the back of the engine. You have to access the sensor from underneath the vehicle.
Click here to enlarge imageMore information: http://nissanhelp.com/diy/m...
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2005 Altima: codes P1031 & P1148. Have a scheduled fix in 2 weeks time, but should I be concerned about stalling?
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If the problem is just the sensor, then your vehicle shouldn't stall at all. Have you experience any other symptoms besides the engine light?
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Have the code p1148 on my 05 Altima. How do i go about locating the sensor. Just been looking for a diagram to point me to the right part. Any help? Thanks!
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Do you have 4 or 6 cylinder engine?
2005-2006 Nissan Altima with 3.5 Engine Air/Fuel Ratio and O2 Sensor Location: https://www.nissanhelp.com/...
2004-2006 Nissan Altima with 2.5 Engine Air/Fuel Ratio and O2 Sensor Location: https://www.nissanhelp.com/...
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We still get the same code which is P1148 on our 2006 Nissan Altima 3.5SE (V6). It says P1148 closed loop bank 1 even though we replaced all the A/F Ratio Sensors and O2 Sensors. What could still be the problem? Thanks in advance for your help.
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Start by checking if there are no exhaust leaks near the sensor. If no leaks are found, then perform the Mixture Ratio Self-Learning Control Data. (Instructions here: https://www.nissanhelp.com/... ).
If the problem persist, then you may have have to reprogram the Engine Control module (ECM) with the latest program at the dealer.
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We did the Mixture Ratio Self-learning Control and the code P0102 didn't display in the scanner, just want to ask why? By the way, there's no exhaust leaks, o2 sensor fuse is okay and still P1148 and P0031 appears. I guess our last resort is to reprogram the ECM at the dealer. Thank you, we're learning a lot from your site.
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My guess, that the P0102 did't display, was because you didn't run the engine enough time or didn't fully cycle the key (Turn the engine off. wait couple of second and restart), after the MAF was disconnected.
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where would the censor be for P1148 code on a 2004 Sentra 1.8L? I am under the impression one is on the top of the engine and one on the bottom?
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The P1148 code is for the Front Oxygen Sensor, which is on near the top of the engine.
2004 Sentra 1.8L Oxygen Sensor location here: https://www.nissanhelp.com/...
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I have a 2009 Nissan Altima 4 cylinder with the codes p1148 and p0725 this problem just started after getting my replacing the manifold convertor and two oxygen sensors. If I replaced the crank shaft position sensor and oxygen sensor will it fix the issue?
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It's very possible. At least that's what the codes are suggest replacing.
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