why is that when i rev it up alittle and then let go of the gas pedal the rpm drops then picks up again then go back down when the car in nuetral? is this normal for the skunk2 p28 ecu cuz this doesn't happen when i got my stock ecu on. it feels like it going to die then picks up and then back to normal idle.

 

Mine does that on a stock ecu.....Hmmmmm strange. Also when i tap the gas real quickly and lightly the rpm drop to like 500 and then go up. Weird. Anyone know why?

 

My ECU did that after I reset it. But the problem went away after a day or two. I wouldn't worry too much if it doesn't give a CEL and the car run fine.

 

Mine does the same thing. No big deal so far.