Having trouble with my ‘08 Sierra 1500 I took it to a shop and at first thought it was a fuel pump problem, now they are saying it’* the fuel pump driver(control) module, can seem to find a replacement without spending hundreds of dollars to get the part and get it programmed. Was curious if anyone may have an extra laying around they are willing to sell or has bypassed the module someway?

I believe it needs to be programmed so that it knows the VIN of your vehicle and then it will work. Without that I believe it will be foreign to the system and not work.