P0174 Nissan Code - Fuel Injection System Too Lean Bank 2

Just got the 07 altima3.5 for my son check engine light come on. The car seems to have a little miss when idling the code says po174 took it to carlot they cleaned the oxygen sensor and cleared the light but it come back on doing same thing

Start by checking for intake leaks. If no leaks are found, then the next step is to clean the Mass Air Flow (MAF) sensor and replace the air filter. If the problem persist, then you may have to replace the Oxygen sensor.

https://youtu.be/tctd4DLupc4

hi, I have a 2010 Murano that has an excesive fuel consumption it feels like I force it when driving and overheat when going into a high slope for which the speed goes down to 10mph until it cools down, the car makes a lot of effort entering into my garage in reverse because it has little sloepe and at last it smells like burn.
I was told it could be the transmission which I confirm its working ok and a new transmission cooler was installed a new , the catalyst has been replace but I still have the problem and the P0174 code with the service engine soon sign on my car, can anyone help me? thank you!

Looking for suggestions: I've got an 02 Nissan Maxima that began with a P1168 code for the MAF. I've cleaned the MAF and checked/tested it with a volt/ohm meter as best I know how. I'm seeing around 1.4V at idle and see it go up to around 3.0V when revving the engine so I think the MAF is fine. I tested for intake air leaks by spraying carb cleaner on everything I could think of being suspect and found no change in idle at all. I just swapped out the Bank 2 Sensor 1 O2 sensor thinking that might be causing the issue. Not sure if the sensor I put in is good or not.....just testing to see what happened. A short test drive brought up the latest P0174 code but not the P1168. Any other suggestions other than replacing the O2 sensor? Thanks.

The MAF and vacuum leaks are the most common causes for P0174 code, but for the P1168 code, you more than likely have to replace the O2 sensor.
Did you clear the "Mixture Ratio Self-Learning Control" after swapping the sensor? if you didn't thats why you probably got a different code.
After you replace the O2 sensor, make sure you clear the "Mixture Ratio Self-Learning Control"

Instructions here: https://nissanhelp.com/diy/...

Thanks. I wasn't aware of that procedure. I'll follow it and give it a shot. If all else fails then I think I'll replace both of my upstream O2 sensors. I think I had replaced both bank 1 and bank 2 upstream sensors with universal fit replacements a few years ago. I never trusted them to begin with. I think I'll go with better quality OE fit model O2 sensors this time. Once again, thanks for your quick response and assistance!

Denso and Bosh are good brands, but I usually use Denso.

I have an 09 maxima. Had both catalytic converters replaced along with MAF sensor and o2 sensor. Code p1074 is still showing. Had vehicle smoke tested for any air leaks which there were none and now am confused as to what the real problem is. Any suggestions or comments?

The P0174 code means that there is more air than fuel during the engine combustion. The MAF and O2 Sensors are the most common solutions for the P0174, but the next step is to find why there is more air than fuel. Either the fuel injectors are clogged, or somehow more air than what is required is entering the engine. There are a couple of incidents where the problem was the PCV valve. I recommend using fuel injector cleaner, along with high octane gas and if possible changing the PCV valve.