tweecer install questions

Dan95-5.0 said:

the weather isnt going to be too great this weekend. raining now till monday. so i decided to install a few things i have laying around.

i want to install my tweecer R/T but have a few questions.

can i plug the tweecer to my home pc without the eec to see what tunes are on it from the previous owner? i bought it used.

i dont have a laptop yet (going to borrow from a friend) but want to install it now. i will plug everything in and leave the switch on the dot (5th position) so i can run the stock tune.

i wont have the LC-1 installed for a while because i have a new h-pipe coming soon. so a proper tune wont be happening for a while.

any tips to ease my install? how long did it take you?

Click to expand...

I would strongly advise you to read your pcm for a base file to start from
as opposed to using a file you find on the web or from someone.

The reason is you are assured of a fresh and uncorrupted file that way.

Speaking of corruption ... I'd be afraid of anything on that used unit.

Even on a new unit ... It is a good idea to start from fresh.

Having said all that ... I'd load your oem down load file on all 4 switch positions to wipe out past stuff and ensure you start with clean data.

If you wanna play around ... You can dl the software to your home pc and find
files on the tweecer sites and see what others are doing with their files.

Here is a tip or two that has helped me in the past

Be sure to save your current file on a floppy, cd, thumb drive, or something other than your tuning laptop on a regular basis so if something hoses up ... you have not lost everything from the very beginning.

Make detailed notes of you changes and how those changes effected things in a note book. You will find they can be very helpful as you go along.

Read old posts here and on the Tweecer sites and have a section in that book where you can write down Q's and thoughts as they come up ............

Believe me when I say ... You are gonna have a lot of Q's when you first get started and if you are organized with your Q's and thoughts ..............

You'll find ... if you stick with it long enough ... things WILL start to make sense

Then ... You'll find a good bit of those Q's and thoughts you wrote down in the book can be answered by yourself ... but ... You really do have to give yourself enough time for all the info to kinda sink in before ......... You see the light

You are gonna find a lot of stuff is at your disposal and available for change
but
If you don't know what it is ... D O N ' T ... hose with it

If unsure of which way to go with a change
Make a small one
and
Use datalogging for verification you went the correct way

Everything don't always work like it would at first seem it would

This little tip is something that cost me a lot of time, effort and grief when I
was first getting started

Be leary of info from Fox Folks

They be a different kind of PCM and you can easily be mislead

Hope you have as much fun as I have with tuning your Stang
and
Welcome to the world of Self Tuning

Grady

Just as Grady said.

But i will add a little more


Be sure you clean the J3 port with some alcohol and a Q-Tip, get all that white gel in there out on BOTH sides, i don't suggest using anything more aggressive with the connector ( sand paper/scotch brite/razor blade ).

Installation is relatively easy but can be a PITA if you are a big guy, specially when you are stuffing all there inside the space is limited (unless you take the passenger seat out for a little more room) and also you will not get the EEC on its full position because there is a plastic bracket that holds the eec in place and the tweecer make the EEC unfitable in there, unless you take the whole pain of taking the bracket out and chopping the piece that interfere, otherwise just get the eec in there and hold it with zip ties.

Ohh a word of caution once the eec its on its place please check that the tweecer haven´t moved or disconnected because you could end with a fried tweecer and eec, to avoid this use some tape but not much to hold the tweecer on the EEC making kinda X with the tape

Glad there is another tweecer guy here! have fun and keep us posted

Yeah as said above, make sure that J3 Port is very clean! I used a piece of cardboard folded over to shim the tweecer inplace it make it a little more sturdy then I duct taped the tweecer on. This is a very good idea to do becuase when putting the eec back it you bump it and twist it and hit it on everything there so it would be very easy for it to come lose.

The only way I know of to clear the old tunes is to load your base file on on settings, this is the first thing I did. I took the cobra file (I have a gt) Modded it for my injectors and MAF and then loaded it to all settings.

Gradys advice is exellent as always.

Hope that helps!

so you have to use a lab top to do anything with this system? what about just messing around with the stock tune is there a way of retreiving it and just play with it?

deric89460 said:

so you have to use a lab top to do anything with this system? what about just messing around with the stock tune is there a way of retreiving it and just play with it?

Click to expand...

You can either read the eec or find a stock tune online. I don't think you need a laptop. You can hook the tweecer to your computer and write the tune. Then hook the tweecer to your eec. R/t is worth the extra money. A laptop is needed for r/t too.

without the R/t and an air/fuel ratio monitor, its just a shot in the dark and you can potentially damage your engine, that being said yes you can download the software on to your home pc and get some base files online to mess with, i usually do the base tunes on my home pc and then make the minor adjustments with the laptop while data logging, only reason i do it this way is because the laptop i have is very old and slow, easier to work on my home pc.