Originally Posted by Spootypuff
And it miraculously fixed itself upon resetting the ecu, it's like magic
Maybe coincidentally the excess oil had finished burning off. Just throwing out ideas. I personally think it's more dependent on what you're changing on the car rather than a flat out "flash it every time" or "don't flash it ever". If it was a quality intake you were changing, then I don't believe you would have needed to reflash. However, if you install an intake that isn't good for the car(probably shouldn't have installed to begin with) then reset the ECU, the ECU goes back to it's original(safe as can be) tune, which has everything reset including all the learned timing advance and everything else it's learned to increase performance while keeping it safe. So maybe this is your case, maybe it's not. Don't take what I say as law, as I am just a newbie, that has a decent understanding of how cars and ECU's work. However, Davenow does have alot more understanding of cars/subies and how they work and I would believe what he says over something that happened to one person anyday.