03-04 harness the same? Yes and no??
 

03-04 harness the same??
(Each car is a 6 speed)So I have an 03 car that doesn't have an engine in it I recently bought about a month ago (no body damage)I just got A 04 car 2 weeks agoThat runs and drives (alot of body damage)the differences I have found between the 03 and 04 harness in the 04 car it has vdC button In my 03 car does not but has A TCS Button in place of It I have Read that if left disconnected it just deletes it Which is straight because this is going to be a drift/auto cross car My question is Should I run the 04 eCU with the 04 harness and 04 engine in my 03 car will it plugg in all the same to the dash harness???(pullin motor and trans out with harness atached.03 harness had been played with and dont want 2 use it). Another difference I have found is the 03 car has a different "ABS block" (silver thing that all brake hardlines connect 2) Then the 04 car and has different wires and connectors that come from the ABS block in my 04 car then my 03 car I was thinking to just swap the ABS block from 04 car to of 3 car to eliminate any problems do you think this will work?

https://cimg6.ibsrv.net/gimg/my350z....8ed1e940d1.jpg

As MicVelo stated in your OTHER thread do NOT double or triple post the same question again and again. For one thing, it makes you look both dumb and desperate. To answer your question, you clearly have engine harnesses from different models of Zs. Your '03 is likely a base or enthusiast and only has traction control (TCS). Most likely your '04 harness will allow the engine to start and run, but you may have CELs and codes showing up. So, the answer is a qualified 'yes".