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15 Posts
u dont need to access your PCM to get codes but u do need a scan tool and the knowledge to use it u hook it up to the DLC umder the dash on the drivers side and i dont recomed a chip untill u have enough mods to get one because if u do any more mods u might need to get another one to to every thing working right but if thats all the mods u want to do and u have an auto beacause it changes the shift points and u want to spend the money then go ahead i would recomend changing your rear end gears to 3.73 that will give u the most bang for the buck but u will have to rcallibrate your your speedometer to get the correct readings do waste money on a chip change your gears