...BTW your Bieber avatar is awesome.-Malone
diesel = no o2 box... and fyi.. all non westy gas had box.. till 88..
81-84 bunny had them built into the speedo.. people say gotta take apart to reset.. but much like how to remove a mechanical part for ignition switch a simple piece of coat hanger made up takes 2 min max to reset.. just gotta know too.. it sux working on them when new.. and rembering what a new one is like.. thats simple crap i did when i was 10 and younger..