Is there a difference in an auto or manual engine harness?

I have a 5spd b20 w a auto z6 engine harness is there a difference?

What could cause it not to crank?

 

There is no difference in the '92 - '95 automatic and manual engines harnesses, the backup light wiring on the manual version is used for the automatic shift solenoids on the automatics. There is however a difference bettween '92 - '93 and '94 - '95 D15B7 engine harnesses ('92 - '93 harnesses have the MAP sensor connector as part of the chassis harness, its in the engine harness on '94 - '95 versions) '96 - '00 are a completely different story.

 

gotcha thanks.
i was tryin to swap out harnesses in like 2deg weather im thinkin maybe i just looked over something and now it wont turn over. before it would at least turn over.