Nissan Altima electrical problems

I have replaced the water pump, the belt, the thermostats, the rotors, the brakes, the fuel pump, the evap vent valve solenoid, the spark plugs, and fuel injectors and my car is STILL throwing the codes P-0462 and P-447. I've checked the wires and they are good. My car keeps misfiring and stalling now and my fuel pump doesn't have a fuel level sensor. The float bar is brand new as well as the fuel pump. And my dashboard speedometer is 10 miles off. I've tried everything and it's still throwing the same codes.

My driver door does not lock and unlock automatically. This poses a risk because my door remains unlocked when I think that it is locked. Also, I have to go in through the backseat of the passenger seat in order to get in my car posing risk of someone coming up behind me. I had the back actuators replaced a couple of years ago, I asked about the front since the car was still under warranty and I was told they would not replace them since they were not acting up at the time. I was told at one point it would be around $800 to have the front ones repaired. The lock has been working intermittently probably for the last year and a half, but have now completely quit working.

I’ve had my battery and alternator checked and both are good. Multiple times now my car has either not started until it gets a jump. Took it to a shop and was told its electrical issues. I was at my a football game for my kids out of state and my car would not start after having it off for over an hour,me n my kids were stuck for 3 hours before they got someone out to jump start the car. I take it to another shop tomorrow for additional testing. No lights have appeared and no warning before it happens.

I have a 2019 Nissan Altima SR 2.5. I have currently had the car for about 3 or 4 years now. For most of the time I have had the car, the check engine light stays on. I have had it tested, and it always states that it is the Mass Air Flow Sensor. When sitting in park idling, it will "malfunction" and state that the engine is reducing power. During this, the automatic emergency brake warning light and the VDC light will come on. It's rare that it happens while I am driving but it has happened. I recently had the vehicle checked again and again it stated that the Mass Air Flow Sensor and the Grille Shutter Actuator were throwing codes along with some other minor items. I purchased the MAFS and replaced it in hope that this would correct a lot of the idling issues, however after a few days of driving the vehicle, it again has started to malfunction and idle harshly. I do know it typically happens in the morning recently, but I was also having issues with my battery draining for no reason. This car is a certified lemon. I currently don't know what to do, as this sight states I have no unrepaired recalls for this vehicle, and I currently owe too much money to trade it in.

Engine light comes on i get it checked out every time is the same issue saying it's "mass air flow" it's now the 4th time i switch the piece and the car keeps on leaving me stranded now it's lead to a computer problem various mechanics have told me this particular model of year has allot of issues with this I'm not sure why there hasn't been a recall yet

backup camera fails consistently backup camera screen goes grey. it is dangerous because you cannot see behind or to the side when backing up. it has been to the dealer and they claim they cannot replicate the issue. the problem is more consistent now and it is out of the 36000 mile warranty. the camera system is now failing daily. no warning lamps. the vehicle also has a no start condition, and it won't detect the key fob intermittently resulting in me being stranded 3 times. also taken to the dealer and the problem could not be replicated. the camera problem does not seem to be affected by weather conditions wet or dry hot or cold the problem started at approx. 10000 miles took it to the dealer at 34000 miles now i have 48000 miles car is 2 years old.

THE AUTOMATIC EMERGENCY BRAKING (AEB) SYSTEM WITH PEDESTRIAN DETECTIONB WARNING LIGHT COMING ON IN MY CAR. NO, I DONT FEEL MY SAFETY WAS AT RISK AT THAT TIME NO, IT HAS NOT BEEN REPRODUCED OR CONFIRMED. WE DID TAKE THE VEH TO NISSAN OF GREENVILLE, TX AND WAS TOLD THERE WAS NOTHING THEY COULD DO ABOUT IT SINCE THE LIGHT WAS NOT ON AT THAT TIME AND DWAS TOLD THE SENSOR MIGHT BE DIRTY, OR THAT THE SUN "HIT THE SENSOR, CAUSING IT TO GO OFF" THERE WAS NO OTHER LIGHTS OR WANRNINGS PRIOR TO THE MALFUNCTION WANRNING

My car constantly turns off mid drive and then turns back on , also all the lights on my dash pop up eveytime I start the car so I’m pretty sure it’s an electric issue sometimes it’s doesn’t start I have to play with the battery little bit and I’ve had it tested even bought a new one so ik it’s not the battery it’s electric, it frequently turns off for like 5 seconds while I’m driving and then turns back on