Rpm surge.
 

Hey all, long time no chat. I finally got my car on the road with MK Turbo brain, built MS3 and flow force injectors. The problem I'm having is every time I let off the gas pedal the rpms surge up about a 1000 rpm and then slowly stabilize back down. Can someone tell me how to attach a log? Fwiw it's a 99.

Sounds like you may need to tune your isc/iac bias table

Too much dashpot?Under closed loop settings, find the dashpot percentage adder and lower it a bit.