General Info:
Here are a couple of basic guidelines to follow:
1. refresh the screen before moving on. A lot of times the TwEECer will reject what you have entered. If you are modifying a scalar there is a refresh button on your screen, I suggest you use it after every entry. Fuel tables and some scalars will round your values down the the closest value it can accept. For example, if you put a 12.1 in the fuel table, once you refresh it will change to 12.014. I can't tell you how many times someone has complained that their car wouldn't run just to find out that one of the values in their MAF transfer had changed to a 0. Everything needs to be double checked before writing to the chip.
2. Backup your tuning frequently, after a small mishap were I had to start all over, the file got corrupted somehow, I learned that it is very important to back up your TwEEC's. I save a new file for every couple changes, but I am a little anal too.
3. Use the Tuning Notes in the "Input/Output" tab, you are going to forget some of the changes you have made. 
4. Compare different factory EEC calibrations, there has been a lot of success in using a modified version of the Cobra(J4J1) cal. There is a ton of differences between the Gt and the Cobra cal.'s.
5. When installing the TwEECer software, always install the Borland database software first.
6. Position 1 is full Counter Clockwise the one with the dot if you have one. Off is full clockwise
7. Set your base timing by the distibutor back to 10*. All of the timing tables in CalEdit are based on 10* base timing and it is included in the values you see 

Getting Started:
1. Once you have your TwEECer hooked up and all of the software properly installed. Your are ready to try your first tweak. Be sure to turn the car to the "ON" position, but not running, anytime you are trying to read or write to the twEECer while it is connected to the EEC. You desktop PC users don't need to worry about this, as I believe when the TwEECer is not connected to the EEC it is bus powered by the USB cable.
2. Open CalEdit, go to the Input/Output tab, the TwEECer knob can be in any position, click read EEC, this should populate all of your scalars, functions and tables with your stock configuration. If you want to use a cal. other then your factory, you will have to download it from the TwEECer website, then using the Input File button, navigate to the .bin file. Make sure in the file type drop down menu you select Ford EEC binaries.
3. I would make a small change, something immediately noticeable like the idle RPM or Fans, save the change by clicking on the write changes button.
4. Now select one of your 4 available tuning positions on the dial selector and check write TwEECer. There are a couple of extra steps for datalogging, but I will get to that later.
5. Now its time to verify that your TwEECer is working by selecting the position you just wrote to and starting your car. You can switch between 2 different tunes while the car is running. Go ahead give it a try, switch between the factory cal and the one you just wrote, and watch you idle go up and down. Now you are ready to try datalogging, if you bought the RT model.

Note: This assumes that you have a working and installed TwEECer on your car and that you are using CalCon/CalEdit v1.20b or newer. 

1) Connect the USB cable from the TwEECer to your computer. 
2) Startup CalEdit. 
3) Click the tab labeled "Utilities" at the top 
4) The top right of the screen contains the various variables you may datalog (you may select up to 16). Select the items you would like to datalog. 
5) Click "Payload". 
6) Click the tab at the top labeled "Input / Output". 
7) Check the box labeled "Data Logging" which is right below the button called "Read EEC". 
8) Turn the key in the ignition to the ON position and wait 5 seconds (so windows can have time to load the USB driver to talk to the TwEECer). 
9) Click "Write TwEECer". 

* wait for CalEdit to write the binary and payload to the TwEECer * 

10) Close CalEdit and Startup CalCon (CalEdit cannot write to the TwEECer while CalCon is open). 
11) Click the tab at the top called "Dashboard" or "Digital" (doesn't matter which, just pick whichever display is preferable to you). 
12) Select the correct RT Method (pick from list under "Log to File" checkbox) 
13) Check the box labeled "Log to file" in the top right hand corner. 
14) Start the car. 
15) Click the button labeled "Start Logging". 

The gauges in the display should now spring to life showing you the various items you selected in your custom payload. If it does not, or very strange values show up, please make sure the connection with the J3 port on the EEC is clean, and that you followed the steps above correctly.

tuner guide.pdf

EEC Tutorial.doc