- Thu Oct 25, 2007 12:56 pm
#27433
http://www.hazone.com/hvlight.htm
About this How-To:
Ok, your reading this, thinking "VTEC light? that is so rice" well, at one time I would have agreed with you however, I found a need for it. My main reason for installing the light is because, on the SOHC VTEC engine, you can barely feel the VTEC engage as it is much less tell whether or not it disengages in between shifts. So now with this light, I can tell whether or not I have let the engine go out of VTEC mode when I am racing. (More or less its just another gauge to give you information). So having explained myself, I have also included the installation instructions along with part numbers. Enjoy.
Tools Needed:
Soldering Iron
Drill W/bits
Other standard tools
Parts Needed:
Parts from Radio Shack:
Package of 330 OHM resistors Part# 271-1113
5mm LED of your choice, I choose a Blue on Part# 276-311
Roll of 18-gauge wire, I got a three color package of solid core but stranded would be better (solid core part# 278-1223 )
Snap-in LED mount Part# 276-079
Tap-in clips Part# 64-3052
Notes:
Alot of people ask if this will work on so and so model of such and such car. This will work on ANY VTEC motor of ANY year. The pin from the ECU is the only thing that may vary, It should always be Green with a Yellow stripe.
Figure out where you are going to mount your LED and drill a 1/4" hole.
Solider the two wires to the two leads from the LED (the longer of the two leads is the positive lead The shorter lead is the ground.) Solder the resistor in line with the ground wire (I soldered one end of the resistor to the ground lead on the LED and the other end to the wire) making sure that the wire is long enough to reach from the mounting location to the right side of the passenger seat near where your right foot would be if you were in the passenger seat).
Put one of the snap-in LED mounts into the hole that you made. Next insert the LED from behind, into the snap-in connector (you will feel a little click when it is in all the way).
Run the cable to the ECU location (near the right foot area of the passenger side). Take out the two plastic retainers for the ECU cover and pull off the cover ( it may take some force, but it wont break).
Unplug the two plugs that are closest to you on the bottom of the ECU (there are a total of three plugs, but you don't need to unplug the third). On the furthest plug of the two (the one for my car is Grey), locate the VTEC signal wire (Green with a yellow stripe). Once you find the VTEC wire, attach the positive lead from the LED to it using one of the tap-in clips. If you look under the glove box in the same side as the ECU, you will see a phillips screw, You can strip off some of the ground lead and attach it to this screw. reattach the ECU plugs and put everything back together and test it out.
If you did everything correctly the LED should come on when the VTEC engages. Here is a picture mine after installation (it is mounted on my Auto Meter gauge pillar)
92 civic cx sold!!
horizon gray 94 LX-A wrecked :/
white 92 civic Si (traded)
primered 94 teg sold
92 civic DX sold!!
93 red EX coupe parted out!
93 LS400 Midnight indigo sold!
92 civic LX sold!!
90 240sx sold!
93 faded black EX coupe
i mean rob you even said its so barely noticeable how do you know its actually working? 
am i just being a nooblet and assuming the ecu would still throw a "signal" to start the vtec if it wasnt hooked up?
