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OMG8THGENEX
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Discussion Starter #1
In my old EP3 I installed a 'Vtec light' by tapping into the green and yellow (vtec) wire underneath the glovebox by the ECU.

I was thinking of doing the same on my 8th Gen but would be interested to know if someone has already achieved this and could tell me where the 'Vtec wire' actually is.

Cheers.
 

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Premium Member
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In my old EP3 I installed a 'Vtec light' by tapping into the green and yellow (vtec) wire underneath the glovebox by the ECU.

I was thinking of doing the same on my 8th Gen but would be interested to know if someone has already achieved this and could tell me where the 'Vtec wire' actually is.

Cheers.
There is already a vtec indicator on the 8th gen though
 

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OMG8THGENEX
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840 Posts
Discussion Starter #3
Sorry mate.... forgot to mention... was thinking if it was possible for the FK2, which doesn't have an indicator.
 

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COTM Feb 2012
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3,995 Posts
Sorry mate.... forgot to mention... was thinking if it was possible for the FK2, which doesn't have an indicator.
It doesnt have VTEC! (in the way you're talking about)

it only works to give the engine more economy. It would be on the whole time lol and when you put your foot down would turn off :D
 

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Sorry mate.... forgot to mention... was thinking if it was possible for the FK2, which doesn't have an indicator.
Sorry mate. I was on my phone so just assumed you were talking about the fn2
 

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OMG8THGENEX
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Discussion Starter #6
It doesnt have VTEC! (in the way you're talking about)
LOL... I knew it wouldn't take long!!

...I'm not sure that whether the cam changing for performance OR economy would make much difference to the information I need... would still imagine that when the cam switches albeit for economy there could still be a 12v live. If this is the case I could alter the colour of the footwell lights according to whether I am in or out of Vtec?
 

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LOL... I knew it wouldn't take long!!

...I'm not sure that whether the cam changing for performance OR economy would make much difference to the information I need... would still imagine that when the cam switches albeit for economy there could still be a 12v live. If this is the case I could alter the colour of the footwell lights according to whether I am in or out of Vtec?
Why on earth would you want to do this??????
 

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...............Daedalus
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3,687 Posts
Cazza was selling some V-TEC lights similar to what you're trying to do a couple of months back. I think they were for the 8th Gen.

I would imagine they'd come with instructions.

Maybe if you asked her nicely she could send you a copy if them.

Sent from my X10i using Tapatalk
 

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COTM Feb 2012
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3,995 Posts
Cazza was selling some V-TEC lights similar to what you're trying to do a couple of months back. I think they were for the 8th Gen.

I would imagine they'd come with instructions.

Maybe if you asked her nicely she could send you a copy if them.

Sent from my X10i using Tapatalk
Doesnt matter, the 1.8 doesnt have i-VTEC lol!
 

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OMG8THGENEX
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840 Posts
Discussion Starter #10
Cazza was selling some V-TEC lights similar to what you're trying to do a couple of months back. I think they were for the 8th Gen.

I would imagine they'd come with instructions.

Maybe if you asked her nicely she could send you a copy if them.

Sent from my X10i using Tapatalk
Thanks!... Might just do that :D

I've dug abit deeper and now know that it's certainly can be done! Just need to find that wire!

Although I can't seem to find it at the moment I seem to remember a Greek member knocking up this style of mod on a non-R model some time ago.
 

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OMG8THGENEX
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Discussion Starter #11

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COTM Feb 2012
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OMG8THGENEX
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Discussion Starter #13
OOOOOHHHHHH no it doesnt! :rolleyes:
Well perhaps I am wrong... but why on earth does it say "i-vtec" at the bottom of my rear windscreen aswell as on the Honda site?
 

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OMG8THGENEX
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Discussion Starter #15
Thanks Bog... It DOES have i-Vtec! ... and I knew it worked differently... just somone seemed to think that it doesn't have it at all :rolleyes:.

...and to be fair to me I aren't interested in whether v-tec engages for power OR performance... I just want to know where the 12v live appears at the cam change.
 

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Lord of JAE.....
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5,395 Posts
Thanks Bog... It DOES have i-Vtec! ... and I knew it worked differently... just somone seemed to think that it doesn't have it at all :rolleyes:.

...and to be fair to me I aren't interested in whether v-tec engages for power OR performance... I just want to know where the 12v live appears at the cam change.
Tbh it doesn't have proper vtec, it has what should be called Vteec the extra e for economy. It is logical you can do your idea, although a little redundant as tbh the 1.8 is quickish but theres no real change between it's vtec stages, it doesn't make much difference in engine noise or feel, unlike the other vtec. As said any light would be on permanently and switch off when vtec turns off... you would need some sort of resistor to work it the other way and to change the ligths working on a voltage drop system like we operate on our security shutters. [I have owned both in 8th gen btw].

Tom
 

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Lord of JAE.....
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Thanks Bog... It DOES have i-Vtec! ... and I knew it worked differently... just somone seemed to think that it doesn't have it at all :rolleyes:.

...and to be fair to me I aren't interested in whether v-tec engages for power OR performance... I just want to know where the 12v live appears at the cam change.
And your type of Vtec does not engage, unless you lift off the throttle... it disengages when you accelerate past XXXXrpm
 

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OMG8THGENEX
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840 Posts
Discussion Starter #18
And your type of Vtec does not engage, unless you lift off the throttle... it disengages when you accelerate past XXXXrpm
Thanks for that Tom... in 1.8 i-vtec the eco cam disengages at 3500rpm... so unless the 'normal' cam has a 12v feed then perhaps I would need some kind of relay fitted to another live?

So, off the top of my head I could have a green light active if there is a live from the eco cam, switching to red from the normal cam 12v?

Has this not been done in the CR-Z or is that just me? lol

I'll keep digging :popcorn2:
 

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