V-SPEC 1

Hi I'm sorry if this been ask before or I'm not really understanding the diagram on how to wire the relay to activate vtec on a PO6 non vtec ecu. please help. I tried splicing the wire from output a15 to 85 and vtec solenoid pin # A4 to 87 and hookup the switch to 86 and 30 what else am I missing here.

http://www.hondata.com/techvtecrelaydiagram.html


Modified by V-SPEC 1 at 2:21 AM 1/14/2008

0mtber

iTrader: (2)

You simply use the ecu to send out a signal to the relay via an alternate ecu ouput.
The relay then sends 12 volts to the vtec solenoid hence engaging vtec.

If you are not familiar with how a relay works, simply google it. They are very simple.

Example: Pin A20 PCS sends ground signal from ecm to relay.
Relay sends 12 volts to vtec solenoid.

So from the diagram:
85 would be a ground signal.
86 would be a clean 12 volt power supply that is switched on via ignition.
30 would be a clean 12 volt power supply that is switched on via ignition (jumped from 86)
87A would run to the vtec solenoid.

GSE980

so does the jumper need a 12v source splice into it?