I used the ELM327 then went to this model here. They're similar but this one is a bit better and seems a little bit faster than the 327 model. JMO, of course. This particular BT unit is capable of reading fuel pressure, but I'm not sure our trucks put out that information, before 2004 models. 2004 and up has this capability, but I haven't check on the 97's up. Anyways here is the link and picture of the item I used. Black is available in the order form, it just doesn't show in the original Amazon picture.