Ive got this joint
http://www.ebay.com/itm/UPDATABLE-SUPER-CAN-OBD-II-OBD-2-Code-Scanner-Reader-NEW-TP-280CAN-/350871572723?pt=Motors_Automotive_Tools&hash=item51b19350f3&vxp=mtr
it actually says it does check im status but ive never been able to? Just reset my tahoe cel for evap and tried to find im status with no luck