This one will be easy, for all of you that is. It's under the engine on the drivers side. Is it a problem that the left wire coming out of it is frayed and missing some insulation?

 

Sender for oil light/gauge. Non-essential, meaning it won't kill your car if the wire falls off, but you do need to sort that out.

 

both wires carry a ground signal , no power, so if it "shorts" no smoke gets out you just get a bogus reading...

 

Easy one...thats the "oil pressure sender " which sends two signals..one for pressure (which fails to a default of 5 bar all the time) & the other is the low pressure warning (which tends not to fail, but I don't know what its failure mode is?)

When you change it you will need a stubby 27mm wrench..& also change the ol thermo springs above it...they are cheap & should be on everyones list of things to do!

 

Excellent, Thank you!! I was more worried 'bout the wires. I had no plan on removing it for any reason. Guess i'll just put new connectors on, call it a fix.

 

Eric
You could always cut the wires and splice in some new ones further back in the housing.....not that hard really......I had to splice in a new loop lead on my fuel pump.....the thought of soldering where gas had been leaking all over the place was not tempting...so i just used a crimp fit....works great so far!