So ive been an hptuner user for a while now and this is something new. I go to read the vin on my recently purchased car. 2001 pontiac formula v8. and on step 5. "reading entire vcm" - i am getting a red FAIL. with error message - VCM Read failed at loc: error 4500 checksum. what does this mean and how do i fix? i then put my hptuner to my 99 trans am and it reads as normal as always. switch back to formula and ERROR
i also used the shop snap on scanner and it reads the 2001 formula data and codes just fine. im stuck...
any help is appreciated thanx