Okay gents, i accelerate in 2nd gear maybe to about 4K ASC light will come on, but will come off after I turn it off, car just has a cat back, could it be a faulty sensor? Car has done this 2-3 times already, car doesn't lose power or anything just seeing that light come on is annoying. Should I call the dealer to look at it?

 

Check your fluid level for your AYC pump. Might just need to be topped up.

 

Fluid seems to be topped off in the trunk, could it be overboosting on stock? Weather has been cool lately..

 

Could be your pump is going out. Those have a 100k mile warranty from Mitsubishi, regardless of mods. Take it in and get it assessed, they will more than likely replace it and you'll be on your way.