Drove them around for a good while, i thought they where connected at they read 32 psi when 35 was in them but then went blank after about 10 mikes and never came back. Put the Nitto’s on and it read them before I left the drive way. There’s 8 of them in my garage pretty close to the car, 2 fronts which are original, 2 on original rims with 275 MT Street SS on them, 2 in the replica Nitto rims and these 2 new ones in the race stars. That was my thought too, take them to where I had them mounted and see if they get a reading from them. They where brand new, do they have to have a tab pulled on them to connect their battery or any thing??