call partsbin. they have them for $120 (the bosch version--same that Motec uses in the PLM)

I have my kit and have been assembling it. Its tedious work but if you've done lots of electronics work its not too bad. I understand most of the circuit and how it works--there is a good walkthrough on Peters Techedge site. The assembly guide gives some testing parameters as you go along and i'm having a bit of issue with some of the voltages although all seems to be working. Got the board all assembled now. Will work on the LED display next!! So far, have not heard from anyone who has successfully completed the kit and got it working. They are selling completed boards and fully completed kits now. Couple hundred more. Along the lines as buying the FJO unit.

torin

 

you can wait a little while longer and order an assembled and calibrated unit for 250, excluding the wideband o2

 

hmmmmm.....let me see...........YEP I CAN WAIT!!!!

 

Well, I think Im gonna buy this thing since I have access to a TI lab. I should be able to have it done in a weekend, I hope at least.

art

 

Civic Hx 96-00, maybe the 01+.....come with a 7 wire wideband O2 sensor. I sold mine a while back for $50.

 

Wouldnt doug be able to conver the honda ecu to read the wideband 02 sensor from the HX series civic. IT should be possible .I mean the codes for the HX are in the ECU and he fairly well versed. IF that would be the case then Hondata would be the ultimate setup.

 

This question is the same as Turismo's up there. The Honda sensor is just a NTK 5 wire sensor, same as the sensors the other UEGO setups are running. You can't just hook up the sensor and read the output, you need a controller to regulate the heater on the sensor and create the 5 volt output. The old Honda VX had the controller built into the ECU.

 

so any update on how you guys think this would compare to the greddy a/f gauge (which i also hear is very accurate)?

 

What i was asking why cant doug build a VX ecu. The whole point of the ntk 5 wire o2 is used in hondas to conserve gas and run a very lean mixture. Its really proven with the Insight. It runs some weird *** af ratios. So if you say the controller is built in. Then theres got to be some way to hack the ECU to do all the other featurs as well as wideband option.

 

does the greedy A/f come with and Wideband also? else if it uses the stock sensor then from what I've been told it would bot ne as accurate..

 

it uses stock sensor. Its not wideband. Greddy af guage is one of the better ones though.

 

no, it does have its own sensor...

 

It's not wideband though, and it can use the stock sensor.

 

I just sent the guy another $94 to assemble the WB controller and display. So I have spent $160 total, plus the sensor (still need to get that).

As much as I like doing electronics stuff myself (hehe), I'd rather be certain that it will work when I get it.

Dustin

 

haha, i did too, he emailed me about assembled units!

 

Actually i have to confess as well, i just got in on the pre-assemblied units as well. I do have knowledge in electronics, but why take the risk to mess up the unit...90.00 more is worth IMO to have the unit guarenteed to be calibrated and working correctly. I really cant wait to get this thing installed and running so i can get some real air/fuel readings...

 

I spent the better part of the weekend assembling these tiny *** circuit boards and I am finally done. Came out looking like factory! Years of soldering helped. I am having a problem in the testing of the circuit as outlined on their website with the buffer circuit not giving an increased bias voltage after the opamp. anyone get to this point??

Peter is very helpful and I praise him for making this diy project available despite the fi-diy group giving him lots of grief. I hope to get this all resolved soon.

Torin

 

I called my local honda dealer adn asked for the O2 sensor.
First they asked which one, I figured that if there is an wideband in it woudl most likely be the first sensor, Is this right?
Second they quoted me for $438 US!!!
Is that what most of you have paid? How much are you guys getting your sensors for and where?

 

The parts bin or napa will carry the ntk ones for btwn 115-130.00. Try either place...infact the site that i posted has the links to both of their sites to buy the parts. That is a way over quoted price on the sensor...or so it seems like that to me.

 

I actually have a 92 vx ecu laying around...i wonder if i could crack it open and take out the electronics that run the wideband sensor. Anyone have any ideas on how this could be done?

 

I would think you would need to know where the components for the controller are on the ECU and if they are built in to the board (meaning is part of one big board) or it is a separate board connected to the ECU via a cable, and you would still need to distinguish what components are for O2 controller, I've never opened and ECU but it is what I think about if I was going to. just my thoughts, it woudl be nice to get a hold of the circuit diagram for the ECUs, anyone knows where we can get a hold of some?

Also do would I be replacing the Wideband sensor with my stock sensor or do I have to install a new bongle(correct name?) on my exhaust for it to go? If i do replace it with my stock one will I get errors on from my ECU?


[Modified by 98401R, 6:17 PM 2/26/2002]

 

Well, after some serious trials and tribulations (and a backwards capacitor ) it looks like I have both the wideband controller and the display built and functioning. Just need to wire connectors and interface for the ECU so Hondata can log the Lambda values.

I'm Happy! A wideband for under $200!!!

torin

 

How are you interfacing this with the Hondata? Is it the same as the instructions for the Motec PLM on Hondata's site. The idea of having a/f data logging with the hondata is very attractive.

So with this setup, when I go to get dyno tuned, I wouldn't need the shop's wideband (and their wideband rates) correct? One would save money on tuning and have a wideband to boot. \

And anyone what's the difference between the bosch and NGK sensors?

This has been an incredibly informative thread.




[Modified by b18bpwr, 9:52 AM 3/2/2002]

 

what happens from what doug talked to me yesterday is that the hondata has input to read the wideband values and can map it accorss your af ratio to make tuningeasy.

 

The Greddy is a wide band and it comes with it's own FGK made sensor.