89s1

As the title states this is a question about my Zdyne ecu.

I have a 1989 si hatch *see sig*
installing a jdm sirII with obd0 dist / injectors / harness and ecu

The saddest thing is. I looked around the net to see how to install this thing (ecu)... and in all the pages i've read and looked at... none say which "one wire" i need to run....

So If anyone knows it would be great
I do of course have the second 02 sensor that is not hooked up right now... I'm wondering if that is the one.

It's stated that the ecu has the vtec solonoid oil pressure all controlled within.

so I need some advice.

89s1

bump for a new day

A1

used ur si engine wiring harness and add 1 wire for vtec thru the ecu.non obd zdyne wilkl plug in w/o modification.i hope this will help u.
later


honda connection
5511 mission st.sf,ca
4155871079

smart monkey

if you have the one wire run a wire from the vtec switch to the ecu to pin A8 on the white ecu plug. make sure you use the right guage wire also. good program for a stock B16 with mild mods

89s1

the white ecu plug.... on the harness under hood? or on the actual ECU clip?

and by vtec switch i'm asuming that would be the green connector coming off the vtec solonoid?

thanks BTW

slowpokesi

yes , its the green connector on the vtec solenoid, and the white ecu plug, its pin number 8.

here is a pic.