In the fuse holder , look at you owners manual.
Fuel pump
PCM B fues in the underhood junction box
unplug your ECM B fuse that should shut it off
Remove 20 Amp fuse in the power distribution center located in cavity B.
Bravada
Buick Bravada Blazer
The 10 amp fuse marked "ECM B" located in the fuse box at the far end of the dash protects the fuel pump circuit. The drivers door must be open to gain access to the fuse box.
Apparantly it was either installed wrong or there is something wrong with the replacement pump.
to find the location try going to www.autozone.com and check on vehicle specs.
Check for frayed wires at the throttle body where the air cleaner assembly mounts. This is a very common problem. Repair the skinned or frayed wire, install new fuse, and hit the road!
Depending on what engine is in the vehicle, it may not have a distributor. If the engine is the 5.7L it does have a distributor. If you have the 4.8L or the 5.3L these engines do not have distributors.