ok i bought my grand prix and it was already reprogrammed but the car didnt come with the programmer and i need to change some stuff what can i do? can i buy a new one and put it in my car with the other one already installed
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07-20-2012
ok i bought my grand prix and it was already reprogrammed but the car didnt come with the programmer and i need to change some stuff what can i do? can i buy a new one and put it in my car with the other one already installed
07-20-2012
I guess I don't understand the problem here.
You bought a modded car and want things changed again?
And what do you need changed?
07-20-2012
like the tire size cause my speedo is off a lil bit and its driving me crazy
07-20-2012
Still can't change tire size in BCM without a tech II so your ABS wont really know whats going on.
also, the speedometer is legally allowed to be off by a certain percent. Do you have a scan guage to check what the vehicle reports the speed as? Or a HUD?
07-20-2012
no i usually use a gps for when i had my truck to, and its off by like 5 mph
07-20-2012
how big are these rims?
07-20-2012
what tire size do you have on there?
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