I have reached out to my tuner and provided numerous logs. He even had a ticket out to ECUTEK as he had not seen this issue previously. ECUTEK didn't provide any resolution unfortunately.I have seen the same issue a few times. I am pretty sure its transmission related, it feels like the transmission was about to downshift to 1st and then when you engage throttle again it delays. Log transmission and ask your tuner. The throttle won't engage until the shift is finished and at slow speeds it takes extra time.
He spoke to Paul Blamire, the lead developer at Ecutek. Paul said
he believes the behavior you are seeing is completely normal and related to how the car is being driven. He said a stock GTR will do the same thing.
In other words Ecutek is not going to “fix it” because they do not see a problem.
This does not seem normal to me at all as the car was not doing this when I was on COBB, so I am stuck between a rock and a hard place as not even ECUTEK will acknowledge this as being an issue....just that it's "normal" 😒