The sensores will no be damaged over filling by 9 psi.Plus tire pressure increases by 1 psi for ever 10 degrees,its cold up north hot in Fla.The tire pressure should be checked cold not after driving for a long distance.
The chip has nothing to do with the door locks period.The chip is read only when the vehicle is initially started only.
The tire pressure moniter system is a pain in the ass for everyone but it s a government mandated system. | 
