Owner has had a lot of problems with high idling(about 1500 when i saw it) on this, he has had it to a few places, he has a brand new IAC valve(4 pin bypass type single point injection)tried another ECU etc,all live data is good, CTS. etc etc one code in memory for idle valve however it was only open 4 steps, i removed it, drove it with my Laser 2000, worked fine, put it back in now it works ok(reading now at 67 steps at idle), but he was finding if he does work on the car it seems ok for a week or more,any thoughts please guys? Thanks, Jim