95 buick skylark custom 2.3l. It cranks but that'* it, I get a DTC 19 code I've replaced the crankshaft sensor and the plug. A few months ago I had similar problem it was the oil pressure sensor, so I replaced it again and the plug. Still nothing, now I don't know why the oil pressure sensor would throw a DTC 19 code or what else it could be any ideas? It was running then the check engine light came on then it loss power and came back then backfired and then I got power back then it shut down.

I've noticed that the fuel pump doesn't make it'* noise when I turn the key. Now I know if the oil pressure switch doesn't work it'll shut the power off on the fuel pump. What should I get for a reading on the fuel pump connector? As well as oil pressure switch, is there any other sensors that will make the fuel pump not work?

you should continue the thread that you have already started instead of starting new with the same question.

https://www.gmforum.com/buick-172/gm-dtc-19-a-306278/