civic vx 02 sensor UPDATE and lean burn monitor ?
 

So...
I finally got my new o2 sensor for my new vx. I read a few reviews from a seemingly sharp guy over on gassavers and he said that he used the $77 one from ebay and that it worked great.
1992-2000 Honda Civic Upstream O2 Oxygen Sensor: sg335-REA1134-36531-P07-003-36531-P2M-A01 Auto Parts Direct To You | AutoPartsDirectToYou.com

I decided to order it and it arrived today. I popped it into my vx and went for a drive...WOW it felt great. :thumbup: So I went back home, got my voltmeter and hooked it up to monitor the lean burn, and went for a drive. Sure enough the lean burn works great with this o2 sensor.:eek::thumbup::D I can feel it engage, and see the voltage go to the positive side when it engages (around +.52 at 60mph). It is really nice having the meter hooked up so I can see that I am in lean burn (although nowhere in my drive around did I ever kick it out unless I really tried).

Now what I would like to know is does anyone have a step by step to making a light-up lean burn monitor (like a green light that turns on)? Please be very thorough in your explanation b/c I am an electronics dummy.

Just thought I would let everyone know about the cheap o2 sensor and pick your brains a little more.

I am ready to start tracking mileage and see what this thing can do!!!:D

I'm with ya on this one, I want a Eco-light too!

Ebay 380329349721.... not cheap but nice
Im using a lm1 wideband moniter...off of my turbo car

I like this gauge, but a simple LED would be nice too

I want an upshift led (yellow)
A lean burn led (green)
And a vtec led (red)

So I can better my driving habits...

I think the lean burn led could be hooked up to a8
The vtec led to a4
And the upshift led pin I'm still looking for...

As far as the leanburn light goes I use the jcar multi voltage monitor but if you can design the circuit yourself the input to your LED would be to the IP+ pump cell positive terminal which is D14 (orange/blue wire) on the ECU. I find that it is best not to obey the upshift light. Just stay in leanburn as much as possible.

I just got an HX and one of the first things I found myself wanting was a lean burn monitor as well. Are there perhaps any step by step guides for something similar so I could just like connect to D14 instead of whatever they say and get a lean burn indicator?

A simple green LED for "lean burn on" would be fine, I don't need to make anything terribly complicated.

Try a led with a resistor. Tap the pos side to a8 (you will need a harness pin/wire) and the neg side to an alligator clip grounded to the body somewhere...

I did this and it comes on during startup (with the other gauge lights) but I haven't been into leanburn yet (new swap, still working out the bugs)

Let me know how this works! I think it will be what you are after

So i clicked on this link and it takes me to a $200 O2 sensor. Where is this $77 one you speak of?

Hobbs adj vac switch could work to turn on & off a light.maybe 2 hobbs switches since lean burn kicks in & out at 2 different vaccum levels. I like a vacuum gauge because There is a lot of peddle in lean burn mode where the car doesnt go any faster.Example:I can drive a steady 55mph in lean burn at 8in hg.then let off the gas peddle to 15in hg & still be going the same speed but gets better mpg.