hello everyone i bought a 1993 300zx convertible with jdm engine/trans swap engine has never been ran. rebuild was done , all parts are new. When i turn the ignition on the fuel pump kicks on and the injectors click and spray. when i try to start it, it acts like it wants to start but doesnt. i bought a new ptu and harness no change. pulled plenum and checked injectors all spray and i think they are 550cc venoms. ecu is ash spec. Also how can i check the ecu to see if it is good? when i do the codes it sometimes throws 34 but most of the time its 55.any ideas suggestions or comments are appreciated. i have a non turbo that i can use to check to see if parts are good i just dont know what else to try lol.