Originally Posted by IAmCman

Let's see if you all might be able to help me here.

I just recently put in my standalone ECU and 550cc injectors, and got it running a few days ago. I got it fairly well tuned, and it's been doing okay, and still is, but a little problem has arisen. I've tried changing some different things on the ECU to correct it, but nothing so far.

Whenever I accelerate then let off the gass, and let it drop into high vacuum, as the RPMs drop it will spout off a good amount of loud pops from the exhaust. Does this have something to do with running way too rich?

Any ideas?