My 83 stang 3.8L does that too, even when I slow down too quick, I dont mind it.

 

you oughta hear my '88 racer pop back through the open H-pipes when I lift at the end of the 1/4 mile! music to my ears

 

I've been doing a bit of homework on the popping. I'm no expert
but this is what I think.

Looks like the "idle speed control motor" or whatever ford calls it
is just doing it's job. It slows down the deceleration and adds air to help
combust unburnt fuel. It also idles up when a/c is on. Does other
stuff too that I forgot already.

Anyway, unplugged it, no popping. Plugged it back in popping continues.
It's just making a lean condition on decel or down rev or whatever
you want to call it that causes the popping, I think.

 

i think its just the ehxhaust you have

 

Well, guess what?????

I was cleaning the MAF sensor wires and also the idle control unit.

I happened to notice that the previous owner had installed the
MAF sensor with the flow arrow pointing in the wrong direction.

Installed the MAF correctly and now......no popping.
It's more of a rumble. Sounds much better.

 

LOL Morons! LOL

 

lmao!!... that is quite possibly the cause of your too lean codes as well...

 

Same here

 

when i was running just off of my stock h-pipe it popped very very badly and was raspy as heck, i didnt like it at all, so i put the stockies back on

 

how can i make my exhaust pop more? lol