Can Pontiac update the ecm/tcm
12-17-2008, 12:41 PM
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Staging Lane
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Can Pontiac update the ecm/tcm Can pontiac update the computer to newer specs. I have an 06 gp gxp and I have heard that the 07 & 08 gxps have in the dic the actual tire pressure of each tire showning? In the 05 & 06 it just warns you if any one of your tires is 10psi lower or higher since you last rest the tire pressure monitor. I'm assuming that the sensors are their since it knows if the pressure is 10psi hi or low.
