Hondata

I did a quick datalog, and that actually solved it — Boost Control on the 9th gen is working properly now.

Great job on the support! The car is feeling really sharp.

I love the K24Z.

I installed the new software version you indicated, and the update completed successfully.

My question is whether I need to re-register the car's data after this update. I checked my last registration, and BC Target and BC Duty still seems to unchanged.

Please let me know if a new registration is ...

I use version 4.6.4.0

Not working.

I tested it again, but the boost cut is still occurring.
Just to clarify, I’m using a 3 psi spring in the wastegate. That means the pressure does rise, but both BC Duty and BC Target remain at zero / null.

The dyno tuning was completed on January 29, 2026.

Today I discovered something interesting: I lowered the boost control pressure all the way down, and the car responded by running only on the wastegate spring pressure (3/4psi).

I will continue testing, but it seems like a possible system bug ...

When I plug it back in, it turns on the green and red lights for about 0.3 seconds. Right after that, it goes back to the red light blinking continuously.

At the output to the 4-way solenoid, it always has 12 volts.

K24Z7 turbo setup using the CanBoost 9thGen.

The car was properly tuned on the dynamometer, and the boost control system worked perfectly during dyno tuning.

However, once driving on the street, the boost control target does not change at all — neither increasing nor decreasing. It remains ...

I have same problem. My tune sometimes enables the Boost control target, but other times it doesn't change at all... and only works with spring pressure. It doesn't go above 3/4 psi.

Can anyone tell me if I'm configuring it wrong?