With that Low Oil Pressure light being on, that should be your #1 concern at this moment.

 

The oil pressure is my main concern right now. It's because when the car idles this low that's when it comes on and the engine doesn't feel smooth, but if the idle goes yp to about 800 or 750 it goes away. And it fluctuates in between 5-650 that's why I'm asking if it's normal. The next oil I'm going to use is 10w30 synthetic and see if it goes away. I have 5w30 in it right now and the manual calls for 10w30 in the summer

 

The 1st thing you need to do is get a manual gauge on the engine to see what the oil pressure is because anything else and you are wasting your time and money. If you get a gauge on it and it shows you have good oil pressure then you can address the lower then normal idle.

 

Well i was able to get a sending unit pretty cheap so i picked it up and put it in and its still there. So unless this new sending unit is a dud then it seems i really have low oil pressure at idle. But it only happens after 20-25 mins of driving and only around 600-650 rpm

 

You definitely have a bearing on the way out then. I would suggest you get a higher viscosity oil for now. 15w40 or better.

 

Well ill start with the 10w30 and see what happens. If it doesnt go away then im just going to sell. I thought this car would be amazing and fun but it just seems to be problem after problem. I fix one thing and 2 more things break. It was fun in the start but now its starting to get annoying. I dont even know how i could spin a bearing or ruin one. I dont even drive the car that hard