This page assumes you have properly installed and registered the software and properly connected the cable to the car and to the PDA. This guide will be of no use unless all these things have been done already.
Is the Software properly registered?
90% of all "it won't connect" complaints are registration issues. Make sure (i.e. double check), on the main PocketLOGGER screen (The screen on your Palm that has the graphic of the boost gauge) that it doesn't say "unregistered" under the logo. If it does, the software isn't registered. Try reentering your registration code into the registration screen as described in the QuickStart Guide. The program will NOT connect to the car if the software is unregistered.
Make sure the cable has power.
Make sure the ignition is on. The car doesn't have to be running, but the ECU needs power.
The red spade crimp must have power on it in order for the cable to work. Use a meter or test light to check for power on the terminal you have the spade crimp plugged in to. The Installation instructions show the power wire connected to the bottom terminal of the top fuse. Keep in mind that only one terminal of a vacant fuse slot has power on it.
Check your connections.
Make sure your Palm is fully seated in the HotSync cradle or cable. Make sure the Red Spade is connected to 12v. Make sure the diagnostic connector is fully seated in the port. Make sure the Hotsync cable is fully connected to the PocketLOGGER cable. On some Handspring Visors, disconnecting the Visor from the Hotsync cable while the PocketLOGGER program is running then connecting it back up, releases the serial port from the Hotsync driver and allows PocketLOGGER access to the port.
Check your Palm.
Make sure your Beam Receive is On. From the App launcher, run the "Prefs" program and change the pull-down in the upper right corner to "General". The Beam Receive option is on that screen.
If these suggestions still do not help, then FULLY fill out a help ticket at http://help.pocketlogger.com