Sounds like your adjusting the biss correctly. The FIAV needs to be replaced with a new one. Where do you live. I am south of the cities. I can stop by tommorrow or sunday and help. Plus I can make a photo copy of notes I have off of old vfaq which is really good and explains everything so you have for reference. I wished it was just adjustment of biss for you, it will take a little longer for ya. Reason you have no surge when ignition grounded is because ECU does not have control of ISC, it cannot fiddle with. I am starting to think your valve is locked on FIAV.
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