94 Honda Civic EX. Swapped in a Y8. Kept same OBD-I dizzy. Everything was perfect.

Today I got a OBD-II dizzy so that it will properly mount and everything. It mounts up properly on the bottom two holes of the head, the top one is off by a couple mm.

The problem is with the wiring. I have read all the stuff about repinning the plugs. Here is the problem though. My OBD-I harness has 9 wires for the dizzy, and there are only 8 comming out of the new distributor.


Do I have a B-series Dizzy? that is all I can think of.

What do I do about a tach signal? That is the wire I am missing on the new dizzy.

 

solved my own problem with some talking to people with experience with swaps.

OBD-II dizzys come in different forms. Some 8 and some 9 wires. On the newer ones, the tach signal goes to the ECU then the gauge. On OBD-I, there are 2 signal wires, one for the ECU and one for the Tach gauge.

Thought I would post that and add to the pile of info on the site.