HondaPride85

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

Eran

iTrader: (1)

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.

HondaPride85

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

Jestin25

i want this same motor did u fix it

vartok

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

grumblemarc

iTrader: (4)

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

Jestin25

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

vartok

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

grumblemarc

iTrader: (4)

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.