Add a tee to the sender and put a guage in the tee . This will tell you the on and off points of the sender .
Either replace with a known good switch or with a manual oil pressure gauge
Remove the oil sending unit and install a mechanical gauge. Start the engine cold and let it warm up to normal operating temperature. It the oil pressure is correct then replace the oil pressure switch.
It can.
No, if the oil pressure switch is bad it will just give you a false reading of your oil pressure.
Yes, oil can leak through the switch.
If it is leaking, yes, otherwise no.
Of which low pressure switch are you speaking? Engine oil pressure switch? If you're checking that, remove the oil pressure sending unit and temporarily put in an oil pressure gauge. If you're checking the AC low pressure switch, pull the switch from the AC low pressure line, Jumper the switch socket and see if the AC compressor comes on. If it does, you either have low refrigerant pressure or a bad switch. If you KNOW the pressure is up and everything else works, you have a bad switch.
High oil pressure is good....
If the switch is bad or you don't have enough oil pressure the ECU won't engage VTEC as to prevent damaging itself. Get a new switch.
no.
No
No it will not.