Originally Posted by joshtowal
Just keep in mind that your sensor might not be the problem. It could be reading perfectly and your pump is just weak or the engine is worn and not providing good pressure.
I totally agree. Take my truck engine for instance. If I was at a stop light and the engine was hot, the gauge would go down to zero pressure. As soon as I take off, the gauge would move back to the normal range. My engine ran well, but I knew it was worn out mainly because the previous owner never changed the oil and it was caked with sludge.
The fun of it, is I bought it specifically to rebuild the engine and was able to get it running well prior (minus the suspect oil pressure) to tearing it down.
I hear people say "dummy" gauge and I understand that, but I still think that it has to see a certain amount of pressure to function.