I just put a EK D15B 3 stage vtec in my '96 EX Coupe. While I was hooking up the wire harness off the D16Y8 I noticed 2 or 3 sensor plugs were left open on it. The Vtec solenoid has 2 spools instead of 1, giving me a 2 wire plug that doesn't match the harness. What do I with the extras?! I connected the 2 Vtec solenoid wires to the single wire on the harness. Aren't they suppose to share the rpm signal anyways? Thanks for the help.


Modified by HondaPride85 at 12:54 PM 10/21/2006


Modified by HondaPride85 at 1:02 PM 10/21/2006

 

No, they're not supposed to share the same RPM signal.

3-Stage VTEC works in this manner:

Below X RPMs:
Pin 1 and Pin 2 are out, both lobes spin freely, each cylinder runs on 3 valves. Economy Profile.

Above X RPMs:
Pin 1 is in, Lobe 1 is connected, Lobe 2 spins freely. Each cylinder runs on all 4 valves. Standard Profile.

Above Y RPMs:

Pin 2 is in, Lobe 2 is connected, Lobe 1 spins freely. Each cylinder runs on 4 valves. Lift and durration is increased. Power Profile.

 

Well, then what do I do with the extra (pink/red) wire that my harness lacks a connector for?

 

i want this same motor did u fix it

 

wow, gratz on pulling up a 4 1/2 year old thread... judging by the post numbers, they arent around anymore....

fyi, there are wireing diagrams on how to wire up the 2 spools to the ecu... GOOGLE

 

You already have your own 3-stage VTEC thread going. Don't know what possessed you to bump this 5 year old one.

 

LOL BUT I DID AND I CHOULDNT FIND ANYTHIN DO I NEED A NEW ECU

 

start your own thread with all the info about your swap and any other info you have and let this thread return to the dead

 

He already has one.
https://honda-tech.com/forums/honda-civic-del-sol-1992-2000-1/has-anyone-ever-donw-3-stage-vtec-swap-upgradesc-something-no-outcome-2921478/
Doesn't seem to be able to find anything on his own.