I'm doing an engine swap and will be using a 2005 5.3 L33 engine and a 4L60e trans. Will I need more than just the ecu and engine wire harness from donor vehicle ... are there other "black boxes/ control modules" that are needed?
I've worked with other aftermarket EFI systems. For this project I want to use a factory system and tune/ program it for my application.
Don't need VATS or secondary O2 sensors