I have a 1993 Allante and, within the last few days, the engine started revving very low when I am stopped or idling. Several times, it felt like it was going to stall but it recovered. Previous to this, I had also been noticing that the oil pressure indicator drops significantly when I'm stopped. I've only had the car for 6 months and maybe it always did this, but I never noticed it before. Finally today, when I was parked, it did stall and the oil pressure warning light came on (no chime like it says in the owner's manual - it just came on when the engine stalled). It started right back up and I drove it home with no oil pressure warning light, but now I'm nervous. The oil was recently changed and is full, so it's not a low oil issue. There are no visible oil leaks. I saw a generic YouTube video about an "oil sending unit" that may need to be replaced. Should I continue driving the car? Any suggestions or advice?