Fair bit of info around on that..

http://www.aulro.com/afvb/isuzu-land...urbo-type.html

http://www.aulro.com/afvb/isuzu-land...good-4bd1.html

http://www.aulro.com/afvb/isuzu-land...o-install.html

http://www.aulro.com/afvb/isuzu-land...ived-mail.html

http://www.aulro.com/afvb/isuzu-land...onversion.html