Testing the mod on a JetCat 140RX. Before, I got 'pump disconnected/connected' messages on GSU in full RPM. I did one run after the mod and seems like it's Okay now.
Originally Posted by
Carsten Groen
Great George
Regarding the GSU, it is (unfortunately) a well known problem
A quick fix (if you are up to it), is to cut the 2 center wires in the gray flatcable that goes from the ECU/IO Board to the CTU. This will fix the problem (the long technical explanation is that the ECU/GSU have low resistance to load on the I2C bus from the ECU to the GSU (which is also coupled to the CTU, but not actively used).
So, basically cut the center two wires.
On the picture below you can hopefully see what I mean, cut the two wires with the green lines on them
You need to be careful splitting the cable, but with a knife or a wirecutter it is pretty easy
