Since replacing my fuel injectors with cleaned ones (same injectors), and replacing a fuel pressure valve (since I was in there), I have an occasional cough on startup.

When I turn the key, the car begins to crank and sometimes feels like it gets stuck, before finally giving in and turning the engine over. It doesn't happen all the time, and the random occurrences happen when engine is cold or warm. It happens often enough, but not everytime.

The car has not failed to start, but it does concern me. Is starter failing?

 

Since posting this problem, it has not reoccured!

What's strange is that my LTFT began creeping up from 0.0 to 3.1, it's now creeping back down again. It's at 1.6

I'm going to chalk this up to a bad tank of gas perhaps?

I did overcharge my AC system, but I can't see how that would have affected anything? I typically have it shut off when I start the car.