Hi Folks; does anybody have the protocol used by gm on the aldl port. i have a 92 tracker and want to play around with some settings THANKS Pat Ford email: pford at qnx.com QNX Software Systems, Ltd. WWW: http://www.qnx.com (613) 591-0931 (voice) mail: 175 Terrence Matthews (613) 591-3579 (fax) Kanata, Ontario, Canada K2M 1W8