Only advice I can give you is either disconnect the pressure switch and test it on the car, or pull it off and test with air pressure. Use a test lamp or meter and confirm that it is working as expected. NC to C should be closed with no pressure, and NO to C should be closed with pressure
thanks for the reply, the no on the pressure switch goes to the dark blue wire that is hot when the key is on its the 12v on one side of the ballast correct? and the nc goes to the starter sol on the starter relay.
