the oil pressure needle is buried at 120 i replaced the switch still does it replaced switch again still does it 95 ssei thanks in advance

Does the gauge do the full sweep when turning the key on, or does it peg itself immediately?

Are you using the correct sensor? Rated for the gauge and PCM signal? Dual contact?

Or are you using the SE sensor? Have you had a mechanical gauge on there to see what it normally reads?

ys the needle does do a full sweep up then down then it pegs itself all the way up

Test it with a mechanical gauge where the oil sender screws in. If the mechanical gauge reads a lower, normal pressure, the problem is the sender or the dash gauge. If the mechanical gauge matches the dash gauge, (not likely), remove the oil pressure relief piston and spring from the oil filter adapter and check for a stuck closed problem.

[edit: three responses in two minutes - now, that'* service!]

thanks i will give it a try and let you know what happens

well i took off the oil filter adaptor cleaned it all out and the needle still pegs itself. do you think i should replace the instrument cluster?

Not at all. The gauge can't peg itself without being told to.

Please put a mechanical gauge in place of the sender and tell us what it reads.