tweecer install questions

[Dan95-5.0]

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?

 

[final5-0]

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?

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

 

[m0l0]

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

 

[Dan95-5.0]

thanks for the tips guys.

how do i go about clearing out the previous owners tunes before the install?

one of the first things i want to check out is my duty cylce on these 19lb injectors. i've been trying to baby the car since the H/C/I install just in case the 19's cant keep up

 

[tjh566]

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!

 

[Dan95-5.0]

well something serious came up on the weekend i wanted to install the tweecer so i put it on hold.

i finally put it in today and it went in easy in a few hours. i left it on the #5 position (full clockwise) so i could run on the stock tune and bypass the tweecer till i get my laptop

heres a quick little guide to do it for those who dont know how and plan to do it:

disconnect battery

take off the kick pannel and scuff plate (passenger side)

unplugged the 3 connectors infront of the EEC and unbolt the black plate the connectors were attached to and move out of the way.

theres a white plastic brace that holds the EEC in place. remove the one bolt in the bottom right hand corner.

remove the 10mm bolt that connects the harness to the EEC.

now you can slide that puppy out of there.

once out, you can pop off the cover of the J3 port. its on the opposite side of the main harness connection.

now you can see all that gunk in there to clean out. i used a small screwdriver to remove the heavy stuff. then i used a rag over top the scredriver to clean it off. use a small piece of scotchbrite to get those connections nice and bright. just go over it lightly. grab a q-tip with some rubbing alcohol to clean it up.

install the tweecer onto the J3 port and like TJH566 mentioned above, i used a small piece of cardboard fulled over to go in between the tweecer and the EEC to take up the gap.

i secured the tweecer to the EEC by using electrical tape like in the picture below i saw. i only went around once and i felt it was enough.

plug and route the usb and switch cable before installing the EEC back into its place.

put the EEC back in. it wont fit back into its original spot because of the tweecer. it fits in nice and snug tho with the plastic white brace over top (i didn't put the bolt back in). i had to rotate the green bolt thats holding the ground wire so i could plug in the main harness.

put it back together and start her up.




thanks for the help and tips guys. made for a really easy install

 

[deric89460]

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?

 

[Mustangless]

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?

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.

 

[tjh566]

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.