VTec Light problem

**Boban** · 15-03-2006 11:51 PM

Hello boys and Girls

I wanted to be cool so i decided to put a Vtec light in my lil civic. Pretty simple stuff. Splice into the wire on the Vtec sensor and connect that to a bulb and connect the oter wire on the bulb to the ground and you are done.

So after doing that, i warmed up my car and toole it out for a spin. It works

, but my engine light (the one with the engine picture) come on. So i immediately shut off the engine and checked everything out, it's all good, nothing blowing up. I started the car up again and everything was fine. So i hit Vtec againg and the light (engine light) didn't come on. So i thought it was all good. But driving again tonight my light came on after i hit Vtec for the 3rd time it came on, so like b4 i turned the car off, inspected it and back on and everything was fine.

So what 'm thinking is that my LED i put on is drawing all the signal out of the Vtec wire and that's messing with the computer. Has anyone else had this problem??? The car still runs fine so i'll keep driving it without hitting Vtec. And i'll also disconnect the light and see if that fixes it.

Thanx for the help and sorry for the novel i just wrote

Boban

**vtec_jet** · 15-03-2006 11:56 PM

well the problems seems 2 be that ur Bulb is eitha NOT a 12 V LED, OR ur Ground is in a shitty place... eitha one.. the LED has 2 be a 12 V..

**Boban** · 15-03-2006 11:57 PM

how do i find what my LED is, i'll try disconnecting the LED and connecting one of those push in bulbs like the indicator/parkies have and see if that fixes it.

Thanx for the info bro

Boban

**vtec_jet** · 16-03-2006 12:11 AM

yeh no worriez, jus go to Jay CAR and ask 4 a 12V LED, its costs like 2 bux in the holder and wiring, its kewwll.. lol

**Boban** · 16-03-2006 11:37 AM

I've just disconeccted the LED from the Vtec wire and everything is normal. I took it above 4500rpm (that's when the LED used to come on) a few times and the engine light stayed off.

Those who have done the Vtec light in their cars, what kind of bulbs/led's did you use. Appreciare all the help vtec jet and others (if any).

Thanx
Boban

**According In QLD** · 16-03-2006 11:54 AM

different idea... Never heard of a vtec light.

if u get a fix for it and its successful let me know cause i wouldnt mind hooking one up..

**baby_c** · 16-03-2006 12:04 PM

Boban- pm sent

According IN QLD- vtec light is easy.. theres information about installation in the forums sumwhere

**ECU-MAN** · 16-03-2006 04:19 PM

make sure you take your signal from A4 on the ecu

thats the 1st connector ( from the left ) 2nd one in from the bottom.

if you use an ordinary LED then use a 680 ohm resistor in series.

**Stoosh** · 16-03-2006 07:24 PM

http://www.ozhonda.com/forum/showthr...highlight=vtec there is a DIY for it According In QLD

**Boban** · 16-03-2006 07:37 PM

ECU-MAN i'm not that keen on playing with the ecu and splicing into the wires there. Iu you could send me some pics of which wire or just tell me the colour of it that i'd give it a go there, if not i might jsut run it from the engine bay.

Thanx
Boban