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Daytona Twin Tec LLC, 933 Beville Road, Suite 101-H, S. Daytona, FL 32119 

       TCFI Log 

(386) 304-0700   

www.daytona-twintec.com

  

10/2007 

 Page 1 

         Twin Tec 

User Instructions for 
TCFI Log Software 

CAUTION: CAREFULLY READ INSTRUCTIONS BEFORE PROCEEDING.  
NOT LEGAL FOR USE OR SALE ON POLLUTION CONTROLLED VEHICLES. 

OVERVIEW 

TCFI Log software runs under Microsoft 

Windows 98/ME/XP/Vista. This software allows TCFI 
fuel injection controller users to view real time engine 
data during dyno tuning, download and display data 
logged by the unit including operating statistics, and to 
control certain engine functions. An optional USB 
Interface or PC link cable is required to connect to the 
existing four terminal Deutsch style data link connector 
on the H-D

 wiring harness.  

The new Twin Tec USB Interface P/N USB-INTF 

provides PC connectivity for all of our engine controls 
(ignition and fuel injection systems) and eliminates the 
requirement for multiple cables or a separate USB 
adapter if your laptop is not equipped with an RS-232 
serial port (9 pin male D-sub connector). The USB 
Interface is compatible with Windows 98/ME/XP/Vista.  

If you do not have the new USB interface, you 

will require the original RS-232 PC link cable P/N 
TCFI-C also used with our new TC88A ignition. Please 
note that the TC88C PC link cable used with the earlier 
TC88 ignition will not function. The two types of PC link 
cables have identifying labels, but otherwise appear 
similar. However, the electrical connections are 
different and the two cables types cannot be 
interchanged. 

After TCFI Log is launched, the main screen 

appears blank. You have multiple display options. You 
can display real time engine data on an instrument 
panel type screen by using the View Real Time Data 
command on the View menu. You can display data 
logged by the TCFI unit on a chart recorder type 
screen. You can also view engine operating statistics 
logged by the TCFI unit. Data logged by the TCFI unit 
must be downloaded before it can be displayed, by 
using the Download Data From TCFI command on the 
Communications menu. Once data has been 
downloaded, it is automatically displayed on a chart 
recorder type screen. You can view the engine 
operating statistics by using the View Statistics 
command from the View menu. You can save this data 
by using the Save File command from the File menu. 
You can display a previously saved data file by first 
using the Open File command on the File menu and 

then using the View Chart or View Statistics 
commands on the View menu.  

TCFI Log is compatible with all TCFI Gen II units 

(including the new TCFI IID version) and TCFI units 
with Rev 5.0 or higher firmware. 

A sample data file (Sample.log) is included in 

the program folder.  

PC REQUIREMENTS 

If you are using the new Twin Tec USB Interface 

(P/N USB-INTF), refer to the supplied instructions for 
details. No additional hardware is required.  

The original PC link cable connects to an RS-

232 serial port by means of a female 9 pin D-sub 
connector. Data transfer occurs at 56 kBaud. The high 
baud rate limits the maximum cable length and the use 
of an extension cable is not recommended. Due to the 
cable length limitation and the need for portable 
access, a laptop PC is recommended. The PC must 
have a free serial port (COM1-255) with a standard 9 
pin male D-sub connector. If your laptop does not 
include a serial port, you can use a USB adapter. 
However, not all USB adapters will work correctly with 
our PC link cables. Most of the inexpensive USB 
adapters are intended for interfacing Palm Pilot type 
devices and do not support all the signals required by 
our PC link cables.  

We sell and recommend a low cost USB adapter 

(P/N USBG-232) that has been tested with a wide 
range of system configurations. The USBG-232 
adapter comes with correct and updated driver files on 
CDROM. After installation the USBG-232 adapter will 
usually appear as COM5. 

We recommend a laptop with Pentium processor 

and super VGA display (SVGA with 1024 x 768 pixel 
resolution) running Windows 98/ME/XP/Vista. Data 
chart display is graphics intensive and a high speed 
Pentium processor is recommended. Processors 
slower than 300 MHz will exhibit sluggish program 
loading and response. The PC must have a CDROM 
drive for program loading. 

TCFI Log includes print commands to print 

downloaded data. The program has been tested with 

Содержание TwinTec

Страница 1: ...Once data has been downloaded it is automatically displayed on a chart recorder type screen You can view the engine operating statistics by using the View Statistics command from the View menu You can...

Страница 2: ...e menu The filename associated with Monospace 821 BT is monos ttf TCFI CONNECTION If you are using the new USB Interface refer to the supplied instructions for details No additional hardware is requir...

Страница 3: ...oxygen sensor feedback shown as percent value from 75 125 Front and rear cylinder BLM values are displayed for TCFI IID units FRONT INJ PW REAR INJ PW injector pulse width in milliseconds FRONT ADV R...

Страница 4: ...king on the Print button a color inkjet printer is recommended for best results Data parameters include RPM engine crankshaft RPM VSS vehicle speed in MPH MAP manifold pressure in In Hg 29 92 In Hg co...

Страница 5: ...me Gear Ratio Display shows the calculated gear ratio RPM KPH at the cursor position This function is useful for determining the 6th gear ratio required for Module Parameter setup in PC Link TCFI IID...

Страница 6: ...The data is fairly self explanatory Total hours represents the total time that the engine was running ID represents the firmware identification This field typically includes the manufacturer Twin Tec...

Страница 7: ...the Communications menu The elapsed time data in the various RPM bands can be displayed in the form of a histogram chart by clicking on the Histogram button Color coding of the bars helps to interpret...

Страница 8: ...ORRECT COM PORT IS SELECTED IS PROBLEM FIXED CALL TECH SUPPORT YES FIRST TIME USE OF USB ADAPTER THAT WAS SUPPLIED BY A THIRD PARTY NOT SOLD AS PART OF OUR SYSTEM NO OTHER SOFTWARE ON PC THAT USES COM...

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