Ok so heres my question, i can imagine its been asked before, but here goes anyway........
I have just loaded my truck with a temporary tune from vmp, and now i need to do the data log and get a/f ratios so i can get the final adjusted tune file. how is this done? go to dyno? can the sct 3000 do this at home?

 

Here ya go bud:

http://www.vmptuning.com/forum/showthread.php?t=78

Call Justin if you need more detailed help.


MGD

 

i found and read that forum, however it seems somewhat vague or im a little tuning challenged. i have the livelink 6.5 installed and it works flawlessly, however it only lets me monitor 24 items at a time and from the above mention forum it wants many more than that. plus what formula is used for the analog1 to watch the a/f ? i am very novice at all this, so i dont mind if you hold my hand...lol

 

Oh no ... yer not getting off that easy

The number of Pids/DMRs need not be that extensive - TP uses ~13-15. I'd ask Justin which ones he really needs. But - it IS his call.

Second -the formula - look in Livelink's help facility. It's going to be determined by which wideband you are interfacing to - and what scaling you want to apply.

Example: http://www.svtperformance.com/forums...-livelink.html

The formula is entered into Livelink.

More help in SCT's KB section - example ( if you wanted to just use the X3 with no passthrough to a laptop in-vehicle - you can record more info, for longer, with a laptop):

http://www.sctflash.com/support/inde...cleid=38&nav=0

Support for logging is part of what you paid for buying yer device and tuning form VMP - I' d leverage his expertise as much as possible - it is HIM who is going to be analyzing yer logs.

 

ok i think im starting to catch on...correct me if im wrong anywhere.
heres what i have. sct 3000, laptop with live wire 6.5 loaded.
i will need to get another wire/plug to go into top of sct and chop off end to expose wires. pick appropriate wires to plug into another sensor on engine. what sensors do i need? where to get them and where to install on engine? the simpler the better, please.
plug all this together and it should show the a/f values? then of course any other data vmp needs and this should complete the data log? im really trying to understand but i am more of a see and learn than a read and learn.
thanks for your help.

 

Ok - I think I see where yer getting confused - to obtain proper A/F ( Lambda) information you must interface an external wideband controller with the X3 (Model 3000, or 3015, or any other datalogging capable SCT device, like a Livewire or X2 ).

A device like this: http://www.innovatemotorsports.com/products/lm2.php

Or this: http://www.innovatemotorsports.com/products/lc1.php

There are NO wideband sensors on the vehicle - the O2's are narrow-band devices only.

You need to buy or fabricate the interface cable form the wideband device's Analog 0-5V Output, to the SCT's Analog 0-5V Input.

The actual sensor can go into it's own newly installed bung on the exhaust, or into the existing front O2's location - the wideband comtroller ( LM-1, or LM-2) can 'emulate' a narrow-band signal so the PCM is happy - explained here:

OR - buy the Tailpipe clamp ( the tuner feller knows how to compensate for A/F readings done @ the pipe, versus at the OEM O2 location, IF you tell them.

http://www.innovatemotorsports.com/r...eplacement.php

http://www.innovatemotorsports.com/r...2_tutorial.php

Be aware of grounding: http://www.innovatemotorsports.com/r...-grounding.php

LM-1 manual - a Very good source of info : http://www.innovatemotorsports.com/s...LM1_Manual.pdf

More Resources: http://www.innovatemotorsports.com/r...tion_notes.php

I recognize that this is a lot to absorb, and an extra expense, hence - some folks just book some dyno time at a local shop to record the A/F's using the shop's equipment. You do the balance of the datalog with the X3 at that time and submit all the info in a CSV or Excel form ( up to VMP).

The other method - less optimal - is to record the fuel trim PIDs, and the tuner can kinda-sorta derive A/F data that way - BUT, you MUST discuss this with Justin first!

A wideband is the most accurate way.

PLEASE - discuss all of this with VMP. I'm just a geek with waaaaay too many hobbies .. Hell - I actually think datalogging is FUN

If you were closer, I would happily lend you my wideband - heck, I'd ride shotgun and get all yer data for you.

Canuckistanian - what can I say? we be softies, LMAO !!!


MGD

 

Thank you thank you thank you.....the light bulb finally came on. Very helpful and I truly appreciate your patience and simplicity of how this works.

 

Last question today I promise!!!
I've been looking (now that I know what to look for)and there are paleeeeeenty of wideband o2 sensors available. So which is best for a ford truck without overpaying? And will I need one on both banks or can I install 1 where the pipes come together?

 

Wideband:

I use Innovate; VMP sells Dynojet :http://www.vmptuning.com/store/index...arent=115&pg=1

Sorry - no experience with other brands - but this is not something to economize on - accuracy is crucial or it's worthless. A cheap unit IS a cheap unit. Innovate's tech support is superb.


Mounting:

Refer to page 4, section 3, of the LM-1 manual I linked to for detailed sensor mounting & location info.

One bank only.

For Innovate - Basically, upstream of the front cats (either new dedicated bung - preferred ), in the OEM location (need to use narrowband emulation - not all widebands support this), or the tailpipe clamp (what I use as I like the portability; correction factor needs to be applied)

For Dynojet - rear OEM bung.http://www.vmptuning.com/store/index...474&parent=115

Follow the manufacturer's recommendations, in other words - they differ. In all cases when you submit your data include which unit was used and where the sensor was placed.


MGD

 

not only did I write up a "how to"

https://www.f150online.com/forums/4189723-post8.html



but I also use an Innovate as the post above shows how to use it

 

Off topic, hope you don't mind Kell -
Where can I find LL 5.1, Xc2 won't work with anything else, at least not the 4.?? I am trying.

 

Hi bud;

According to the SCT Tech support page, LL v6.5.0.0 will work with an X2, provided the device firmware is at v1.14 or above

http://www.sctflash.com/showdeviceup...ID=9400&DTYPE=

MGD

PS - IIRC, if you contact SCT, they used to provide short-term private links to older LL and other software via email upon request. I'd try the latest version first though.

 

some great info here

 

MGD:

Thanks much. I have loaded 6.5 and the firmware update on my lap top, will give it a try.

 

yes, there sure is