So back in the day of carb'd engines, if you bump the gas the RPM would jump up (duh) and then fall back to idle real fast. With my 5.3, if i bump the throttle, it takes forever to get back to idle rpm.. maybe 5 seconds or so... what needs to be changed in the ECM to get that snappy idle responce?

thanks
clint

 

I'm no pro but i believe thats adjustable with the throttle cracker/follower tables....never played with it myself so not quite sure.

 

Throttle follower delay and decay. There are P/N and (in) gear tables.