2004 350z blew the stock engine so we got a used jdm engine with manual transmission. Now that we have the new engine in along with the wiring harness and ECU that came with the engine it will turn over but not start. the red light for the NATS stays solid. Im going to assume that I need to take it to a dealer to have this fixed but no dealer will touch a swap. then new motor is the same model vq35de but Im not sure what it came out of. A couple other things..the A/C is not fully hooked up (charged) The cooling fans come on as soon as you turn the key to the start position and it will "fire" with a shot of starting fluid but not run. Need some ideas on where to go on this one...

 

Search...and you'll find uprev can disable NATS