So I just installed my Prosport Evo Series Oil Pressure Gauge and something is not right here. When I accelerate, the oil pressure stays around 38-43 psi. Same when idling. Not sure if I got a bad sensor or I did something wrong. Pretty sure my car is fine since I just bought it in January.

For those of you who is using the same Prosport Oil Pressure Gauge, do you have a brown, green, and black wire coming out from the Prosport Oil Pressure Sensor? If so, can you tell me where did you connect them to?

Right now, my brown is connected to the fuse box (yellow 20), green is connected to the green wire from the gauge, and black is not connected/not used. I thought the black is ground at first, but when I grounded it, the gauge will just show 0 all the time. Can you tell me what I did wrong here? Any help will be much appreciated! Thanks.

 

Also, on that instruction sheet It states, ““G” is the signal wire (connect Green wire to “G”). “WK” is a ground. Please run a separate ground to this terminal.” What does “G” and “WK” here mean?

All I have is a brown, green, and black wire coming out from the Prosport Oil Pressure Sensor.