Tweecer confusion. Dont want to screw it up.

mlinn95gt · May 29, 2007

Hello everyone, Im in need of a little help, and would greatly appreciate some ideas. I Purchased a 95 gt about two weeks ago. Had the tweecer already installed. Previous owner said he had done no tuning. After sitting in my driveway for a couple minutes with the stang at idle I went through the 5 switches on the tweecer. position 1 seems to be a ruff idle, position 2 raises the idle speed roughly 300rpm, postion 3 seems to be the same as 1, and postion 4 stalls the car. Position 5 seems also to be ruff. After doing a little reading i gathered that the 5th switch position "turns off" the tweecer and everything is back to stock. The stang seems to run fine in anyof the switch postions (with the exception of postion 4). Now I have no clue what I'm doing and dont want to screw anything. Asking for a little help. Anyone have any ideas on what i should do? I've been reasearching everything i can to try and understand the system but maybe someone can give me some basics. Thanks !!!

Guero · May 29, 2007

You have a laptop??? If you do and haven't already installed everything you need go to Tweecer.com and download everything you need. What are your mods???

final5-0 · May 29, 2007

mlinn95gt said:
Hello everyone, Im in need of a little help, and would greatly appreciate some ideas. I Purchased a 95 gt about two weeks ago. Had the tweecer already installed. Previous owner said he had done no tuning. After sitting in my driveway for a couple minutes with the stang at idle I went through the 5 switches on the tweecer. position 1 seems to be a ruff idle, position 2 raises the idle speed roughly 300rpm, postion 3 seems to be the same as 1, and postion 4 stalls the car. Position 5 seems also to be ruff. After doing a little reading i gathered that the 5th switch position "turns off" the tweecer and everything is back to stock. The stang seems to run fine in anyof the switch postions (with the exception of postion 4). Now I have no clue what I'm doing and dont want to screw anything. Asking for a little help. Anyone have any ideas on what i should do? I've been reasearching everything i can to try and understand the system but maybe someone can give me some basics. Thanks !!!

I'd not do that again
and
Certainly not do that and drive it one foot

You have no idea what might be loaded on positions 1-4

I'd keep it off and download your pcm to each position so you know
what you got to start off fresh.

Start with being able to up/down load a simple file with the rpm raised to
1K. This will let you know the new file is in place and you will want to save
this new file with a name like 1K or idle1k, etc.

Then learn about building a payload and using that payload to see
real time data and ... more importantly ...do a datalog so you have the
ability to save and analyze data at a later time.

After you can successfully do those two tasks ... you've learned all you
need to know about the Tweecer software and from that point on, you
will need to go about learning the basic operation of the pcm as the
Tweecer is nothing but an interface that allows you to make changes
based upon that knowledge.

Good Luck ... Welcome to 94-95 SN

Grady

mlinn95gt · May 29, 2007

Thanks everyone.

Thanks guys. I'll download all the software and hook this thing up. Im wondering though if there is any thing i can do to just take the tweecer out for now. The car has minor modifications, so for now it might be uneccessary to even have it. As the mods build up down the road maybe i can re-install it? Is it as simple as pulling the tweecer out of the port when the car is turned off ? My only modifications are cold air, 65mm tb, trickflow upper and lower mani. king kobra clutch, and a short throw. So its probably not even be needed. But im deff going to get the laptop onto this thing and see whats going on. I deff want to learn
I appreciate your help guys.
-Matt

Blackened302 · May 29, 2007

i would leave the twEECer in there, just download the stock tune into each position (like Grady said) and start from there. this way you won't risk doing damage because you have no idea what's been tweeked, and you'll save yourself the hassle of un-installing it, then having to re later.

i was in your situation--bought my twEECer used (from Keith to Nacho to me) and the settings were already tweeked, so i erased them all and started fresh. no telling what's set up in them, so i'd definately start fresh w/ each of them.

mlinn95gt · May 29, 2007

Punisher302 said:
i would leave the twEECer in there, just download the stock tune into each position (like Grady said) and start from there. this way you won't risk doing damage because you have no idea what's been tweeked, and you'll save yourself the hassle of un-installing it, then having to re later.

i was in your situation--bought my twEECer used (from Keith to Nacho to me) and the settings were already tweeked, so i erased them all and started fresh. no telling what's set up in them, so i'd definately start fresh w/ each of them.

So I hooked ive got it hooked up and getting to know the thing a little bit. To get the stock settings you just click "read eec"? Then write to tweecer ? Thanks guys.

Guero · May 29, 2007

Thats what I did. I would also just leave the tweecer in there. That way you can control your spark and A/F were you need it and not thru all the rpms as it would by turning the distributer and bumping the pressure up by an AFPR.

Stanger007 · May 29, 2007

mlinn95gt said:
So I hooked ive got it hooked up and getting to know the thing a little bit. To get the stock settings you just click "read eec"? Then write to tweecer ? Thanks guys.

To get the stock tune on all four banks, do the following...

Go to position 5 (twEECer off) and "Read EEC". This pulls down the stock EEC tune.

Go to position 1-4, click "Write EEC" on each position. When you hit "Write EEC" make sure the bar graph at the bottom of CalEdit takes about 5sec to complete. If it flashes really quick, hit "Write EEC" a second time. You are writing the tune you pulled from the stock EEC to the bank you have selected on the switch panel.

What mods are done to your car?

Welcome to StangNet,
Wes

mlinn95gt · May 29, 2007

Stanger007 said:
To get the stock tune on all four banks, do the following...

Go to position 5 (twEECer off) and "Read EEC". This pulls down the stock EEC tune.

Go to position 1-4, click "Write EEC" on each position. When you hit "Write EEC" make sure the bar graph at the bottom of CalEdit takes about 5sec to complete. If it flashes really quick, hit "Write EEC" a second time. You are writing the tune you pulled from the stock EEC to the bank you have selected on the switch panel.

What mods are done to your car?

Welcome to StangNet,
Wes

Wes, greatly appreciated. Everythings fine now, and running normal. Thanks for all the help. No major mods, trickflow upper and lowerd intake mani's, kind cobra clutch. cold air system, short throw, bbk o/r x, flowmaster 40's. At this point in time it seems uneccessary to tweak the stang. Maybe later on when it becomes necessary.....

tjh566 · May 29, 2007

you can get a smoother running car with maybe a little more hp with a tune

I was surprised how rough my stock 95 ran, didnt even realize it was rough, its sooo smooth now, even with the charger.

Stanger007 · May 29, 2007

mlinn95gt said:
Wes, greatly appreciated. Everythings fine now, and running normal. Thanks for all the help. No major mods, trickflow upper and lowerd intake mani's, kind cobra clutch. cold air system, short throw, bbk o/r x, flowmaster 40's. At this point in time it seems uneccessary to tweak the stang. Maybe later on when it becomes necessary.....

Definately hang on to it. One thing you can do now to learn is cut out the spark retard that takes place during shifts.

I won't tell you how to do it but I will point you in the right direction...

First off, the "Getting Started" PDF that comes with the latest version of the twEECer software will give you a TON of info. Mike Glover, the guy that writes the software really put a lot of work into the latest version of this PDF. Whether or not you should run the latest beta of the software is a whole 'nother issue.

You've already found the tuning form here.

Another great spot is http://www.eectuning.org. (their server is down right now I think?)

Lastly, the twEECer forum on Yahoo groups is where you can find the latest version of the twEECer software as well as more discussion on tuning. http://autos.groups.yahoo.com/group/tweecer/

Good luck and have fun.
Wes

P.S. Unrelated to the twEECer, but killer to do as a maintenance items, search in the tech forum for cleaning your MAF. They get dirty and require periodic cleaning - this will really restore some power if it hasn't been done in a while.

Tweecer confusion. Dont want to screw it up.

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