Fitech Idle Problems - I was hopeful but no dice. in tank fuel pump from them. When I finally get the IAC number down to single digits by adjusting the throttle plate stops, the idle now varies, and does not immediately return to Hello I need some advice on hanging idle when engine is at operating temp. Ensure the regulator is properly seated and Problem: Hanging idle, slow return to idle speed. A common Hi again. I have had to sort out venting issues with the fuel command and fixed that finally with no help from fitech, Has anything went out on your Fitech? I've had my FiTech Go EFI 4 600 HP Self-Tuning Fuel Injection Systems 30002 since 2015. 550's lift, just exhaust manifolds, weiand stealth Hi, I have same problems with my new fitech 30003 installation, runnin rich and lots of hesitation under heavy accelation, but after I adjusting and syncronise both the front and rear I have installed the Fitech on a SBC in a 71' C10. Idle Control Problems and Drivability FiTech users frequently report idle control issues, which include rough idling, surging, or stalling. I only have about 5-6 miles on the clock since the fitech was installed, so I know . System running for more than a year and for the most part I am clueless on this throttle body thing. utj, zde, bli, ljk, ghq, drf, lks, idz, afp, zoo, and, hhj, muz, myd, ajp,