Something links that I have found helpful. Personally I have awakened an hour early for the last year and poke around on this site and others. A fresh pot of coffee early in the morning works better for me than trying to absorb all this information after a hard day.

http://www.gearhead-efi.com/Fuel-Inj...ng-Error-Codes!
http://www.gearhead-efi.com/Fuel-Inj...ams-Tuner-Info!
http://www.gearhead-efi.com/Fuel-Inj...2-OBDII-Tuning