I believe that the oil pressure sender is located on the rear side of the
engine block, facing the firewall, and between the alternator and the knock
sensor. It may be different on your '95, but this is where I recall seeing
it on a '96.

I believe that you can test the resistance of the sender (center conductor
to the engine ground) and it should vary 15-80 ohms with higher resistance
for higher oil pressures (rev the engine).

If you unscrew the sender unit, then you can directly screw in a good old
mechanical oil pressure gauge and see the actual pressure. I'd recommend
you do this before deciding to replace the sender. By the way, these are
known to occasionally fail and are the usual cause of the idiot light
illuminating. That said, given the serious consequences of low oil
pressure, it does not pay to guess so you should really check it using a
real mechanical gauge.

Good luck and post the results.

Bob


"Lentinman" > wrote in message
lkaboutautos.com...
> Doug:
>
> I have a 95 SL1. I need to know where the oil pressure sensor is located
> and the obvious next question would be, does it take any special tools to
> replace it, and do you have any idea what they cost?
>
> TIA
>
> Len
>