Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › 91 CRX Si swapped in a SOHC ZC now it won’t idle once it’s w › 91 CRX Si swapped in a SOHC ZC now it won’t idle once it’s warmed up April 26, 2012 at 11:00 am #440371 Trcustoms719Participant Did you try all of the steps Eric mentioned? Did you try adjusting the FITV?