civicracer1993

can i activate vtec with my autometer tach or shift light?

EK22Tim

yes. just tap into the wire that goes to your VTEC solenoid and use that as an activation. But... why?

96-EJ6 B18C

Ghetto VTEC controller lol.

civicracer1993

ok but how would i set where i want the vtec to activate at? say i wire it to my tach?

swaplighter

interesting concept. i would probably leave that well enough alone...

EK22Tim

OOOH I see now. You want to use the shift light to ACTIVATE your VTEC. I thought you wanted your shift light to come on when you hit VTEC. Ok. I would say that in order to do this, you'll need a relay.. use the activation of the shift light at any given RPM to close the terminals on the one side, thereby closing the terminals on the other (VTEC wiring) side. Wire that as a switch right inline with your VTEC solenoid wire. that's how I would do it. It is an interesting concept, and should work.
That way, any time your shiftlight would come on, you would energize the relay passing current through your VTEC solenoid wire to engage. the only catch is, it would only work at or above your current VTEC activation point. Unless you find another sensor voltage point that's always on to pull from. But I would advise against taht... Be sure your voltages are rihgt or you could damage your ECM or VTEC solenoid.
I'm not sure if the solenoid is activated by +12 volts or the sensor voltage (I think is like +4.5ish.) You could always use resistors to lower the voltage from a direct feed from the battery.. hmmm... interesting.. anyone else agree/disagree?

kill bill

or you could leave it the way its supposed to be, and save your self the trouble.

you69

I think what he is trin' to do is test, and kinda maunally activate the VTEC solenoid to be sure that everything is workin'
am I right? i know this because i read your other post.