Wideband O2 & Data logging
Thread Starter
Pro
Joined: Aug 2000
Posts: 700
Likes: 1
From: Florida
Wideband O2 & Data logging
Guys
I'm using Diacom + for my data logging. Is it possible to just replace the existing stock O2's ( narrow band?) and replace them with widebands and continue to use Diacom? Can I expect higher resolutions? Is it compatable with the stock ECM?
Or do I have to have a kit? (O2 & commander) My goal is to begin tuning my car.
Thanks
I'm using Diacom + for my data logging. Is it possible to just replace the existing stock O2's ( narrow band?) and replace them with widebands and continue to use Diacom? Can I expect higher resolutions? Is it compatable with the stock ECM?
Or do I have to have a kit? (O2 & commander) My goal is to begin tuning my car.
Thanks
Former Vendor
Joined: Jun 2001
Posts: 7,204
Likes: 6
From: St Marys PA
can't replace the stock units with a WB. There are monitors that you can get for the Wb02s.
techedge.com or net has a real nice unit that I use.
There are also some hacks for bins that allow direct input and logging. I have one for the 8d mask, but not sure on the 93 versions.
techedge.com or net has a real nice unit that I use.
There are also some hacks for bins that allow direct input and logging. I have one for the 8d mask, but not sure on the 93 versions.
Le Mans Master
Joined: Jan 2003
Posts: 8,596
Likes: 19
From: Portland Oregon
Originally Posted by 93LT1
Guys
I'm using Diacom + for my data logging. Is it possible to just replace the existing stock O2's ( narrow band?) and replace them with widebands and continue to use Diacom? Can I expect higher resolutions? Is it compatable with the stock ECM?
Or do I have to have a kit? (O2 & commander) My goal is to begin tuning my car.
Thanks
I'm using Diacom + for my data logging. Is it possible to just replace the existing stock O2's ( narrow band?) and replace them with widebands and continue to use Diacom? Can I expect higher resolutions? Is it compatable with the stock ECM?
Or do I have to have a kit? (O2 & commander) My goal is to begin tuning my car.
Thanks
www.innovatemotorsports.com
Check out the LM1 WOB2 system, it will datalog for 45 minutes, downloadable to your PC for review. It will also datalog several sensors with an additional auxillary input module or input cable depending on your choice. And you can have one the next day if you desire
The TechEdge is a great tool. As I mentioned above I have two of them myself, they are back up units one for the dyno, and one that I use for portable use at the track or where ever I need it. I just like to buy American whenever I can
Nothing against the Aussies
Former Vendor
Joined: Jun 2001
Posts: 7,204
Likes: 6
From: St Marys PA
Originally Posted by steve40th
Do you guys use one wideband per bank? or do you do one side at a time. The reason I ask is LT-1's have been known to run richer on one side?
I just used mine on the one side across from the H-pipe
Le Mans Master
Joined: Feb 1999
Posts: 9,922
Likes: 38
From: South Carolina
St. Jude Donor '03 & '05
There are allot of articles in SEARCH on this subject. i have the modified Throttle body which helps the number one cylinder not get too much air, and helps balance out the rest of the banks, as the number one (with a larger than stock cam) would get more air in thinking it was lean and richen up the odd cylinder banks, as 93 LT-1's(in my case) are batch fire. So the whole odd side gets more air, needs more fuel, and the right side even bank gets less fuel, as it seems to think it is okay. That is a very simple view of how it works. But, if you go into search, C4 section and look up this topic, "lt1 runs lean on one bank??" etc, you will find links to allot of people that have worked on this issue.
It is also under BLM's uneven.
It is also under BLM's uneven.
Le Mans Master
Joined: Jan 2003
Posts: 8,596
Likes: 19
From: Portland Oregon
Originally Posted by steve40th
Do you guys use one wideband per bank? or do you do one side at a time. The reason I ask is LT-1's have been known to run richer on one side?
Normally the LTx engines do not run rich or lean on one side. The reason that they get split fuel trims which causes this phenomenah is because of the use of certain aftermarket throttle bodys. GM engineered the LTx intake manifold so that they have their own dedicated idle air ports to each individual cylinder. This idle air system takes the idle air from the IAC motor through a dedicated idle air port, which via a cast in runners, distributes idle air to each and every cylinder.
see this website for pictures and further information, click on the LT1/LT4 link then click on "improve your idle quality"
http://www.chipsbyal.com/frameset1.html
If an aftermarket throttle body is used, or if the wrong gasket is used that does not seal off the idle air port. Then all the idle air from the IAC motor goes into the main plenum of the intake and does not get distributed correctly. This is the reason why the LTx engine has split fuel trims. I have fixed many of these with just a correct TB gasket replacement. Some I have had to modify the aftermarket throttle body to make sure that the idle air is directed into the dedicated idle air port.
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Le Mans Master
Joined: Feb 1999
Posts: 9,922
Likes: 38
From: South Carolina
St. Jude Donor '03 & '05
Mine is sealed off, as it is a 58mm Throttle body from AS&M. I did the whole epoxy seal routine etc. Well, the guy I bought it from did.
I did use a factory TBody bored out to 52mm, and I still had the same issue with BLM, as well as the BBK 58mm throttle nody. The AS&M modified helps out significanlty.
I did use a factory TBody bored out to 52mm, and I still had the same issue with BLM, as well as the BBK 58mm throttle nody. The AS&M modified helps out significanlty.