Fuel economy 3.9 with O2 sensors

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Originally Posted by Utemad

........... I have a couple of people over there that might be willing to help. I can't see them being that expensive 2nd hand.......

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Utemaid if you can get two readers that would be good. I would be quite willing to subsidise to keep your cost down.

I am in the middle of a OBDI 1 project for my D1 but would me nice to read some codes in addition to ECU data. I have a Mark Adams Tornado chip that necisitated a resistor change.

Tornado Chips

There is number of ALDL or OBDI 1 software around like this. WinALDL - 160 baud ALDL reader

I am looking to use a serial or USB data cable from these guys. OBD Diagnostics, Inc. - ALDL (GM OBD1) Cable with Bare Pins

Data goes into this sucker

http://www.aulro.com/afvb/projects-t...oard-pc-2.html

Thanks Cockie. I'll go through those links later but it sounds very interesting :)

As for the code reader though I have already ordered one. It hasn't arrived yet but I have paid $16 for one to be sent to a rellies place in the States. Will get brought back when the next relly does the trip in the next month.

For that price I can wait :cool:

Seems i have found a thread that has drawn me in! I have been watching the comments here and i do have a few questions.
How many of you have done this with an 8.13:1 CR (38D) non cat version and what has been the success rate??

With fuel being $1.50 and beyond now, i really dont want to part with my 93 Vogue but want to do something relatively straight forward to pull it back into line fuel wise.

AFAIK there are only two of us that have done it at all. PhilipA (the original) and myself. Might be others that didn't post up about it.

I have the low compression 3.9 and I think Philip does too. Neither of us have catalytic converters as Australia never got them.

It's working well at the moment but at $1.50+ for ULP and 63c for LPG I don't use ULP much at all at the moment.

Hi Cockie, Have you got anywhere with your OBD1 project yet?

Just PM'ed Phillip about this, but thought it might beneath others to.

I brought most of the parts to do this a while back, but still haven't got around to getting the sensor's and fitting it, slack me :p

Two questions, for Phillip and those that have done it :

1. How is it going, noticed any major improvement ?
2. is this the right sensor ? ebay link

Thx
Matt.

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1. How is it going, noticed any major improvement ?
2. is this the right sensor ? ebay link

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I am happy with the economy and performance. It is hard to get clean averages with my 140 L tank, but on my long trip last year I got down to 15.5 L100Km towing my 700Kg camper on flat ground on 100Kmh on the cruise control, and did not get less than 17 even when cruising up to 110 Kmh.

Around town I get about 18-20 but the hills around here are really steep.
I just changed my plugs after 25K and the Bosch ones I removed were pure white, so she is running lean alright.

Remember that I have a Unichip and that I believe a lot of the gain is from greatly advanced timing at low throttle angles that can be programmed in with the Unichip, but certainly the O2 sensors will fix the mixtures.

Yes they are the correct sensors, 3 wire Titania.
Regards Philip A

I have been searching lately for the cheapest O2 sensors for a D1 (ie 3 wire titania). Im PhillipA has said he purchased his for around $30 a piece (plus some for delivery)
the cheapest i can find are just under $100 delivered with the good Aussie dollar at the moment.

The main places i have found are:

Lambdasensor.co.uk
64.63 UK pounds each. (<$200 AUD) plus delivery

oxygensensors.com
$74.50 US each ($150 for two) + $25US for shipping (~$190 AUD delivered)

Global Automotive on ebay
$59.95 US each ($120 for two) + $45US for shipping (~$185 AUD delivered).

Ill buy them from Global Automotive since they are the cheapest, and the security you get buying through ebay and paypal.


Can anyone find these cheaper?

Cheers, Steve

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Originally Posted by Jim621

I have been searching lately for the cheapest O2 sensors for a D1 (ie 3 wire titania). Im PhillipA has said he purchased his for around $30 a piece (plus some for delivery)
the cheapest i can find are just under $100 delivered with the good Aussie dollar at the moment.

The main places i have found are:

Lambdasensor.co.uk
64.63 UK pounds each. (<$200 AUD) plus delivery

oxygensensors.com
$74.50 US each ($150 for two) + $25US for shipping (~$190 AUD delivered)

Global Automotive on ebay
$59.95 US each ($120 for two) + $45US for shipping (~$185 AUD delivered).

Ill buy them from Global Automotive since they are the cheapest, and the security you get buying through ebay and paypal.


Can anyone find these cheaper?

Cheers, Steve

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Bump - anyone been looking recently for these O2 sensors?