On my LSJ, those 3 are the knock sensor, oil pressure and crankshaft position sensor.In my quest to add an actual oil pressure sensor I noticed I don't have the dummy light sensor anymore. Shop must have taken it out when doing machining, because I don't have it. So I bought another one. M12x1.75 threads. I thought it would be easy to put a T right there and attach my new oil pressure sensor for the gauge in the same spot. Wrong! So hard to find an adapter! Adapters to the new sensors 1/8-27 NPT are fairly easy to find, but anything to go back is difficult. Open to suggestions there if anyone else has added an oil pressure sensor.
Related, does anyone know what the question mark pictured is? I assume its something since its shiny and not corroded like the rest of the block was.
View attachment 40772
Camshaft position sensor, I think. There will be two that look the same. Intake and exhaust side.2. Any idea what goes here? I thought it was one of the "oil pressure/temp" looking sensors like the other side of the block, but it doesn't fit.
View attachment 40985
Right, that's what I thought, but it doesn't fit the hole? I'll check again when I get homeCamshaft position sensor, I think. There will be two that look the same. Intake and exhaust side.
Thank you. Appreciate it. I figured it that's where the ground went, but I wasn't sure. Here's some more pictures for reference on the size:I believe you're right. The camshaft position sensor doesn't go it that spot. It's below it. I'm pretty sure I have that ground lug from the engine harness grounded to that threaded hole there. The other hole is empty. I'll verify when I get home though.