yes the prcedure is to have the car running , iscv plugged in , then unplug ,and set idle speed , it must be done in a certain amount of time , something like 30seconds , then you have to re plug back in and hold the revs for a while , then do it again , cant remeber it all tbh, i dont even have an idle valve


for yours if its stalling i would remove the plug off the iscv, unwind the screww approx 1 turn and see if the car will start and idle , repeat till car will idle, then plug in iscv hold revs ( approx 2000rpm ) let idle , remove plug off valve , no change in revs should occur- base idl ok

all must be done with engine ta normal operatingtemp