will the engine harness for the y8 plug into the body harness for the z6 in my 93 Si, or do i have to switch to the old z6 engine harness??

 

It won't plug in. Just use your stock Si harness and ECU. If you still have the d16z6, you can use the distributor and injectors on the y8 so you don't have to rewire that crapola.

 

i still have everything from the z6 and still have the z6, imma mess with that motor abit... but thanx for the answer, i was thinkin i was going to have to use the z6 harness. didnt want to, i thought i was goinn to have to....ah well.

thanx again.