I did a search of this forum using the words "surging" and "popping" because my Titan SE is doing just that on acceleration. Come to find out that seems to be a very common problem with these engines (but nobody has had an answer that I could find). It has mostly been an unpleasant inconvenience because it just happened on the ground. But today, after a gear pass I throttled up to finish my landing pattern and instead of the thrust I needed I got a bunch of surging and popping and a totally hung acceleration. I was VERY lucky to get it back on the ground in one piece. It has flamed out on the ground under these very same circumstances

Several important facts:

EDIT: I've already set "very slow" in the ECU for low throttle ramp time.
It's very hot and humid here.
I inspected the internals of this engine last week and found everything looked fine, including a flow check of the fuel manifold.
If accelerated VERY slowly to midrange, from there it will accel and run fine.
Starts great and puts out tons of power.

I really need help to figure this out because as of now I can NOT use this engine to power an aircraft.