I have the three maddad clarity ti gauges for my 04 STi. Today the oil pressure sensor started spiking oddly with changes in RPM. When warm it will sit at 85psi @ 2000rpm and spike up to 100psi at 3000rpm, but it will rise to 105psi when I change the gas pedal’s position. When I go to idle the oil pressure drops a bit then a bit more, then sits at 60psi for a sec, then to 35psi… with a “stutter”. I thought that it might be the ground but then I don’t think it would be directly related to changes in the rpm. In the past the sensor reads steady at 90psi when warm and 105 when cold, dropping to ~35psi (all very smooth and predictable). Any ideas?
I **think** I read somewhere that Maddad was having some issues with the pressure sending/sensing unit they sent with their gauges. May want to take a look at it.