"What scanner are you using. Provide the exact model. Some scanners have an issue connecting to the 96 ecu. Even the HP tuners module cant run high speed datalogging on it, but they have a work around. "
OK, but don't laugh. Most of my tools are rather vintage.
Innova 3100. It is just a Code Reader - not a Scanner. When I bought it, these things
were new to the market and it cost me north of $120. More full-featured, real scanners,
with graphing capabilities can be had for less these days.
I also use DashCommand v 4.6.7 on a vintage iPad 2, iOS 7. It communicates with
my car via an ELM327 v2 Bluetooth adaptor. It works on both my '96 and '98 XJs.
DashCommand takes a bit of work to setup. It is not perfect, and there are a few
quirks that I would change in the display readout(s) but cannot - but otherwise it is
a great tool. While driving, it turns your cockpit into the Sick Bay of the Starship
Enterprise - but don't take your eyes off of the road while using it ;-).