Is my vtec working?? HELP!! [Archive]

View Full Version : Is my vtec working?? HELP!!

Jdm_Junkee

10-19-2006, 07:35 AM

Ok guys like the title says i just recently got a full jdm d15b vtec swap for my 94 si and i got sent a auto ecu. My question is since my speedometer does not work due to the auto ecu is my vtec engaging?? I appreciate any help in answering my question thanks!!

DelSloVtec

10-19-2006, 07:54 AM

i havent really tested that out myself but from people that i know tell me that it doesnt work if your speedometer is broken or not working...but a good way to test it is to hook up a vtec light to the solenoid which i have done and see if it work and at what rpm it kicks in too

Jdm_Junkee

10-19-2006, 08:06 AM

any info or how to on that vtec light?? thanks

Devine_wind

10-19-2006, 08:12 AM

huh? did you try chicking your VSS sensor like changing it? checking your guage cluster? It's a D-series, you wont feel vtec anyways. IMO. I built one, all i saw was more solid revs and torque with my built d, not anything serious.

Vtec works with strictly revs and oil pressure not speed

firetech_96

10-19-2006, 08:14 AM

If you are interested in hooking up a VTEC light here is a link to a decent post in the DIY Forum:

http://www.d-series.org/forums//showthread.php?t=48600

Jdm_Junkee

10-19-2006, 08:19 AM

thnx for the link firetech... i know it wont be much of a difference on a single cam i just want to have everything in good working order i appreciate everyones help

DelSloVtec

10-19-2006, 08:26 AM

i did mine real easy and it looks good...i went to discount auto and bought a lilttle light 1/2" size its got a possitive and negative the possitive goes to a green wire with yellow stripe (might be different depending on OBD) on the ecu just take into that wire and ground the other wire... and there you go and DEVINE was right your not gonna feel it like a DOHC doesnt mean i havent spanked an ls/vtec with my factory d16 like i tell everyone dont knock it till you drive it

DelSloVtec

10-19-2006, 08:29 AM

oh and sorry to disagree with you DEVINE but vtec works with speed and rpm but mostly speed cause after i hooked up that vtec light when i rev it up to vtec it wont kick in i have to driving in order for it to kick in and if the computer cant read how fast your goin it wont kick on

spool'nsol

10-19-2006, 08:34 AM

mine turns on when i rev it....is your car warmed up?

DelSloVtec

10-19-2006, 09:11 AM

yeah and it still dont turn on i just tried it lol only when im actually moving then it will only turn on but not when im stationary

Jdm_Junkee

10-19-2006, 09:14 AM

i notcied on the light how to that, its a 96+ civic mines a 94 which means its obd1 does that matter??

dustin_crxsi

10-19-2006, 09:58 AM

d15b's are obd1. It will work fine. If vtec didnt work, the error code will show up.

AND about your speed-o problem. Make sure its pushed in all the way, the cable that goes into your tranny. I had the same problem.

DelSloVtec

10-19-2006, 10:03 AM

there no cable buddy...only a sensor on the tranny that you clip a harness too

dustin_crxsi

10-19-2006, 10:06 AM

...wait..I used my si tranny...

CIVICRicerBoy

10-19-2006, 02:23 PM