No just my guess. I’m also thinking possible timing sensor on that side. Sent from my iPhone using FerrariChat.com mobile app
On the 360, the throttle valves go through self calibration. I assumed the 430 was the same. https://www.ferrarichat.com/forum/posts/146682195/ However, if the self calibration fails, you should get an appropriate fault code. https://www.ferrarichat.com/forum/threads/cautionary-tale-re-throttle-body-replacement-calibration.661424/#post-148602987 I assume a stuck valve will generate a code.