Hondata

I was driving from one city to another about 1000KM.
everything went well except when I cruise at 120KM going downhill. This is with cruise control turn on. Naturally, if it is set at 120KM/hr, going downhill would put K-pro into decel mode and thats when I get hesitation.
car will start jerking a little.
does anyone know why??
I have
DCRH
JRSC
CAI
cat back exhaust
RC550 injector
stock fuel system

the problem with bucking seems to stop after I installed modified stock injector. I switched out the RC 550 injector.

There was no change in the cal. I couldn't datalog before as I was driving by myself.