GMC Truck Forum banner

1 - 1 of 1 Posts

·
Registered
Joined
·
15 Posts
Discussion Starter · #1 ·
It used to be that you could disable a fuel pump by pulling the relay under the hood in order to do a fuel injection cleaning service (hookup to the fuel rail). Anyone know how to do this on the NNBS 6.2L gas? There is no fuel pump relay under the hood.
I did find a 25A fuse that I believe disables the Flow Control Module/ITBC module. Just not sure if I pull this it will work to run on the cleaning solution.
Anyone done this?
 
1 - 1 of 1 Posts
Top