factory tune wont work
 

ok so you guys i got an 06 impala ss and the 93 dod tune is installed but have been having some problems with my car and thing i gotta take it in for service since i think i might have a trans issue.so i was trying to install the factory tune back in but says it doesnt read the p/n.what can i doo.?can they really tell other than the fact that it doesnt go into 4 cyc mode.. ? i need help please.