on the way home from school today, i noticed that my oil gauge was 0 at idle. rev the engine a bit and oil pressure built back up. i read on the threads here that replacing the sending unit might solve the problem. my problem is, i can't find the dang thing. cars a tpi 5.7 with the digital gauges.

thing is though, when the guage hit 0, there was no rod knock, or abnormal noise. checked the oil and its at the right level and fine.