Ok, first off I searched this topic and gathered some information but was wondering if anyone can offer additional information. Ok, so we are doing a swap. The car is a 2000 American Civic Ex (automatic). We are using the stock wiring harness. The motor that is going in is a Canadian 2000 ITR motor (obviously converting to standard tranny). So, the wiring harness has 8 wires for the distributor, the b-series distributor that came with the motor that we are using has 9 wires (what we are used to seeing). So, I was wondering what to do regarding this problem. Why does the one have 8 wires and the other 9?
Summarized:
8 wires with wiring harness (2000 American Civic Ex)
9 wires with distributor (2000 Canadian Integra Type R)
What would you do?
Thanks a lot for any help!

Here is additional info I found out after doing some more research. Correct me if I am wrong.
CKP 2 wires
CYP 2 wires
TDC 2 wires
ignitor 1 wire (blk/yel)
* I think this is where the problem is. Are there two wires for some distributors and 1 for others? Other one being (drk blu).
ignition input 1 wire (yel/grn)
Some "hacking" of the harness and distributor plug has occured before the problem was discovered so that is why I am unsure of the colours, just need to know what the "9th" wire is for. Thanks guys.

 

Just a thought. Does the extra wire have something to do with having a tach or not?

 

?

 

What color is the 9th?

 

Some "hacking" of the harness and distributor plug has occured before the problem was discovered so that is why I am unsure of the colours, just need to know what the "9th" wire is for. Thanks guys.

 

bump...need to know this also

 

Yes, it's for the tach. On distributors without this lead, the ECU outputs the tach signal.