FlashPro TSX upgrade
Hondata has determined that in certain situations, programming the 07-08 TSX
ECU will generate a WEN error (write enable). The WEN error is more prevalent in
TSXs that have modified ground wires or have not had the ECU ground wire
correctly relocated after after installation of an intake gasket.
TSX FlashPros covered by this upgrade
All 04-08 TSX FlashPros up to and including serial number FP-TSX-US-90054.
What to do if you see a WEN error while attempting to program.
The ECU ground is located on the intake manifold close to the fuel rail. The
ground return path is through the manifold to engine block and gearbox, to
chassis, then battery. Even in stock Hondas we have measured a small voltage
drop across the stock intake manifold gasket. Relocate the ECU ground wire to a
rocker cover stud - even if you have not installed a Hondata intake gasket.
If the WEN error still persists, the FlashPro will need to be returned to
Hondata for an update.
Unlock the FlashPro from your TSX
- Fill out the return form
- Return your FlashPro to Hondata