Hey everyone. I just purchased a 97' EK hatch and have a question to ask, but I figured I would intro here first (2 pics at the end, more pictures after back from some "touch-ups").

I bought the car to do some of the GRIDLIFE events here in the mid-west. It has seen a few autocross events several years ago and then sat for a while in a garage. 79K miles on the chassis. NO rust anywhere, except a small spot of bubbles where the back passenger fender meets the bumper that is being cut out and replaced as I write this.

It is running an F20B with it's matching T2T4 LSD trans and OBD2B ECU. The previous owner did the swap and the wiring, and the car runs very strong. The wiring is where I think I have an issue. Onto my question;

My speedometer does not work. I have done all of the troubleshooting and have determined it is an open in the signal wire to the speedo (blue/white). Based on wiring diagrams, I should have continuity between the VSS connector signal wire (blue/white), pin 5 if (I remember correctly) on the B connector for the instrument cluster and the VSS input on the ECU (Connector C, pin 23 in this case).

I do have continuity from VSS signal on VSS connector to VSS input on ECU. VTEC works and no CELs. I do not have continuity from the speedo signal wire (blue/white pin 5) to either the VSS connector or the ECU. I have traced the existing wiring, but the swap has modified some of it and I cannot find the junction point/split. I assume it was rewired during the swap (not converted to OBD1, is full OBD2B with matching ECU).

So really... 1.) Where would the signal wire from the VSS split and go their separate ways (ECU and speedometer) for a stock Civic CX with a d16y7?
and 2.) Am I better of just saying "screw it" and tapping in near the ECU and running a new signal wire to the cluster?

I will post this in a "technical" section also. Thanks! OH.. and yes, I did try a new VSS and two clusters just for fun (staying with a CRV cluster now actually). I also have the appropriate voltages and signal when testing at the VSS connector.

-=Mike G.

 

im not sure i can actually answer your question i am aware there is a couple companies that sell jumper harnesses for swaps in that car. im not sure how your swap was done or of that companies swap harness actually solves all the wiring headaches but its something to look into.