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Dual Board CPi2 programming Primary and Backup boards.
Pressing the PROG button toggles
back and forth from the “A” Primary,
to the “B” Backup ecu.
Note the A and B LED’s in photos,
left the programmer is accessing the
“A” ecu board, right its accessing the
“B” ecu board.
When programming timing on the Dual board CPi2, you need to have all the timing values equal in both the “A” and
“B” boards. The same goes for most other settings.
For the most part once the “B” backup ecu has equal timing values to the “A” ecu, you won’t need to switch over to
the “B” unit unless you make changes to timing.
On Dual board ecus the Magnet Position values will be different between the “A” and “B” units.
