My LQ4 swap went flawlessly from being a 5.3l. It went into my 06 Z56 Police Tahoe. It ran fine before the swap, now I get a code NC107 and P1512, runs rough getting the "reduced engine power". I cant find what NC107 means and the 1512 for the throttle body has happened to me before. I have run into the harness wires not being crimped, happened on my 04 Yukon. I checked all ground straps and connections. All seem fine and I even changed the throttle bodys. I am going crazy, didnt have it tuned yet but it still should run off of the factory tune. It is a DBW throttle body. I am having the garage do a crank relearn and see what happens. I did a search many times over and am even more lost. This one stumps me. If anyone has any input, would be greatly appreciated. Thanks