I have been getting a lot of local email so decided to make a thread to explain. From end of August we have revised the JB1 unit. Older units for reference are called Rev 1 and new Rev 2 (Revision 2)
Changes are as follows:
-Higher Quality Harness
-One less plug, the plug A that goes to the Exhaust Camshaft sensor has now been relocated to Plug C and picks up signal on the large plug on the side of the intake manifold
-Added Molex plug for JB4 Canbus connection (future use). This is currently unused on the JB1 but will be used if users decide to upgrade to JB4 down the line
The unit uses the same firmware as Rev 1 units so there is no performance change.
Upgrade to JB4 capability remains similar for both units. The Rev 1 upgrade kit will have the Molex plug added in it.
For data cable connection see instructions below: