PONTIAC GRAND PRIX COMPUTER PROGRAM

The Speed Govener From My Understanding Is A Program On My Car's Computer, If I Switch Out The Computer To Have It Removed Will It Mess...

I Have A 2000 Grand Prix Where I Blew The 3.1 Motor Out Of. I Had A 3.4 From A 99 Grand Am Gt Dropped In. The Current Ecu Is The One From...