Nope, fixed air leaks didn't stop mine, nor did knock sensor, o2 sensor, maf, plugs, throttle body, electric throttle pedal, air filter etc
like I say, I had months of it and I trawled the net for months,
its a sign in ringland damage, it's a sign of bad avcs, bad plugs or gaps, fuel pressure problems etc etc, but the more I trawled the more a certain thing popped up and that was the transition of closed and open loop being a big factor due to the tune, and from what I can remember mappers I think were changing something to do with that
altho as usual, you only have the people with a problem posting up mostly so don't really mean it's a hawk thing I suppose ? As 8 out of 10 hawk owners might not have it