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User manual Associated Equipment, model GM LS1

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See the section below on Palm Desktop for installation instructions. If both Palm Desktop 4.1 and LS1M Synchronizer are installed, you will see this window appear when you hot- synch: The saved logs will appear in the list. Click on one to get more information at the bottom of the screen. You can also select multiple items by holding down the Control key on the PC keyboard or using the Select All button. You can Delete the selected logs, or use Delete All to delete all saved logs from the PDA. To save the selected log(s), click the Save button. A dialog box will appear asking for an appropriate file name or file location. Be sure to select what file type you want to save the data as. A comma-delimited file contains all the values separated by commas (eg 35,2.5,3253,10.8 etc). This is a format spreadsheets like Excel can easily read. A space-delimited file is readable in Notepad or other text editors. The Page 19 EFILive format is for compatibility with the EFILive scan tool program. Note that if you selected metric units on the LS1M Config screen, then metric units will be saved to the log file by the synchronizer. Clicking the other tabs across the top of the synchronizer window – Ltrims, Accel Tests, Trouble Codes – will show the saved data from the other scan screens. Each time LTrims are collected, or an Accel test is competed, or trouble codes are scanned, the results are saved in an internal log database in the PDA. These saved results can be saved here in text-file format. LTrims Cell Data Status Selector This screen is used to collect the LTRIM’s (Long-Term Fuel Trims). These are the amounts by which the computer has increased or decreased the amount of fuel delivered under different conditions, in order to maintain a perfect 14.7:1 air/fuel ratio, as seen by the O2 sensors. Each set of conditions is called a “cell”. Cell 16, for instance, is normally used when the car is idling. To collect the LTrims, click the “Start” button or press “Page Up”. As data is collected, the different cell values in the display will be updated. The current cell will be outlined. In the example above, for instance, the current cell number is 15, with a positive value of 2.20 percent. The overall averages for the left and right bank are listed on the Status line. If the vehicle is a V8 (LS1), then you can select the left or right bank to view, or an average of the two. V6 vehicles (L67/L36) typically only have the Left values, since there’s usually only one oxygen sensor on those engines. (Values for the left and right are collected, regardless of whether Left, Right or Avg is selected.) Pressing the Stop button will stop data collection. Reset will zero all values on the display. Results of LTrim collections are saved in the internal PDA database. To view the saved results, click theView Log button. Page 20 Click the saved entry at the top. Detailed information will be displayed in the bottom part of the screen. Use the scroll bar to the right of this data to page down & see all the collected cell values. The Clear Log button will erase all saved LTrim collections. Accel Test Elapsed Time Estimated horsepower Vehicle weight Speed Status Start/Stop Speeds This screen will perform an acceleration test of your vehicle. First, select the start & stop speeds you wish for the test (0-60mph in the example above). Click the down arrows to select the desired values. Then click the Start button or press Page Up. Your current speed will read out on the screen. The test will not actually start until you slow down to the first speed point and then accelerate. So, for instance, if you’re going 35 mph and press start, then you can slow down to a full stop, and then accelerate when you’re ready. When the timer starts, you’ll hear a short beep, then when you pass the second speed point there will be an alarm sound (if the sounds are not muted – see “Muting the Sound” on page 5. Your elapsed time will be shown, in seconds, as well as your estimated horsepower. Estimated horsepower is based on vehicle weight. You can flip over to the config screen to change this value by pressing the Config button. Each accel test is logged to an internal database. To view the saved accel tests, click on View Log. Click the saved entry at the top. Detailed information will be displayed in the bottom part of the screen. The Clear Log button will erase all saved Accel tests. Page 21 Trouble Codes To go to the Trouble Codes screen, click the Trouble Codes button on the Main Menu. Tab Control Current Trouble Codes Code Description From this screen you can scan for current and pending trouble codes and reset the SES light. Click the Scan button to scan for trouble codes. The list of current trouble codes is shown by default. Click the Tab control to switch to Pending codes. Pending trouble codes are problems that have not occurred consistently enough to be reported as a trouble code, but will become a current trouble code if they persist. Click on an item in e...