Running a 1992 Toyota pickup, with a 4CYL 22RE. I'm confused about two sensors that screw directly into the engine mount. One has is directly underneath the oil filter, it's connector is like a terminal, has a large rubber grommet around it, is this the knock sensor?

The other is directly to the left of the oil filter, this one had plugs, I thought it was the oil pressure sensor but the stock plug I have doesn't fit into the replacement I bought, the original one crumpled and was broken. Thanks for the tips.

 

Should be the pressure sender below the filter. If it is a big can with rubber boot, that is the gauge sender, I think the idiot light sender is a smaller. To the left of the filter is the knock sensor, usually a yellow color. Easy way to tell is see if there is oil behind the sender, the pressure sender will have oil behind it and the KS won't.