I had the avcs checked out by Subaru today. They have confirmed it is 'not active' but the reason they gave me is that the flash tune caused the problem including that it could have burnt out the avcs solenoids. They were unwilling or unable to investigate further and pretty much wanted nothing to do with the problem just blaming the tuner as the cause. Does anyone know if what they are suggesting sounds correct?

My tuner suspects it is a fault with the avcs itself and is offering to inspect the banjo bolts and filters to see if it has clogged up. He claims it was not working when I first brought it to him and that he has logs to prove this. Wouldn't the car have thrown a cel if it was not working before I took it to him?

Hard to know who to believe and what to do??