A couple months ago, my first gen prius started jerking while accelerating, after i pulled over it wouldn't start and the red triangle of death came on. I left my car sitting in my driveway for a couple months, the battery was completely dead/bad so I replaced it. I also cleaned the MAF sensor. I ran the codes and got P3030 and P3120. From what I've read on here those can be tied to expensive repairs. wondering if anyone has any insight if its worth putting money/time into fixing this or if its time to say goodbye.