Help! No oil pressure!

[Gregory OConnor]

could be that the op gauge works. the screen is clogged on the pickup
in the pan or the oil pump is screwed. you can look for a signal(?) to
the gauge to see if the gauge is getting a command from the sender. You
can take off a block oil plug or the oil line to the compressor or
turbo to see if it pumps oil.

The sender at rest, should read around 240 ohms at no psi and go down
to the 30 ohms readings at 90. you can check at the sender then at the
removed wires from the gauge.

Greg94Ca