just wondering if i could use my shift light to activae my vtec? i have a fully adjustable razo shift light. can change everything

 

why?

 

Let me get this straight. You want your shift light to engage your vtec? Or do you want a light that turns on when vtec engages? Either way it sounds a little strange.

 

I have used shift light outputs and relays to activate VTEC before, but you can only do it if you're using a non-VTEC computer, otherwise, you'll be in limp mode because the solenoid won't be hooked to the ECM.

 

damned dude you dont wanna **** with ur vtec...honda has specifically designed it to engage at the right time....do u even know what Vtec is??

 

Why i think that's just the coolest idea in the world. "Have your shift light activate VTEC", wow i never thought of that one... hehehe j/k.. I wouldn't plan one messing with your VTEC engagment point unless you have a somewhat built motor. Have fun doing whatever you want tho

 

iight...lemme tell yall why i asked this question. i put a d16z6 in my 91 civic....and i dotn have my vtec even hooked up...so i was wondering if i could save my money on a rpm switch and use my shift light. so... thats my story...so once again would i be able to use it for a shift light. and please dont thrash me about it. thanks guys

 

yes you can.

it is a valid reason, but make sure you set it as close to where it is meant to engage for performace reasons...

t..

 

is it efficiant...or sould i use it temperaraly? cuz the light is fully adjustable...and if so...does anyone know how i could set it up?

 

sorry...im somewhat a newb

 

the BEST way to do it is a VAFC.

actually it would be to get ahold of the correct ecu

 

ha ha!

https://honda-tech.com/zerosearch

check archives for "VTEC switch"

if no answers, get back to us...

t..

PS should be temporary till you sort your set-up...

 

did a seach didnt find anything......sorry

 

1) speak ENGLISH
2) your wrong
3) if you would have READ this thread, you would realize he dosent have the correct ecu and vtec isnt engaging.

 

Jared has said he uses a relay to switch teh solenoid.

so the output from your shift light should connect to a normally open relay that closes when it gets a signal.

this should be attached to a 12v source and the Vtec SOLENOID. (caps off - opps)

this is probaly a simple expalination, but if you understand - great!

if not - when i got time ill expand it...

t..

 

tinker... i kinda understand what your saying...but i would aslo like to know if it would work using my dx ecu...or do i need an si ecu... cuz i know that i need a new distributor ( still using the obd1 and isnt working) so...if you could please help me out, that would be awsome. AND FOR ALL YOU ALL FLAMING ME...IM NOT USING IT TO CHANGE MY VTEC INGAGE AND DISENGAGE POINTS. THANKS

 

Here's something.. Splice into the VTEC solenoid wire coming from the ECU.. Make sure it's a "T" splice. Meaning, ECU----Splice----ECU------VTEC Solenoid. That way you're not affecting its series circuit and the Solenoid will see all 12volts.. After that, you can connect the wire, that you used to splice into the VTEC Solenoid wire, to whatever you want as long your connected in parallel to the ECU. In parallel is to be connected to a power source and then to ground. Like this:

Splice from ECU---Relay/Switch/Transistor/Zenor Diode/Whatever---ground.
This way you won't effect the voltage going to the VTEC Solenoid because in a parallel circuit, there's source voltage before each load.

But here's something to remember. If the load that you're using draws too much current than the ECU can handle, you're screwed.. So do this at your own risk.

 

ok but still...i cant use a vtec ecu cuz of the plugs...i tried doing an obd1 coversion and this is where i am now(no where) so im trying to see if there is anyway to do this without splicing into the ecu. man im stuck

 

http://integra.vtec.net/engine/vcontrol.html

see if that helps