So i just got my dp-tuner put in and omg what a difference that chip makes comparted 2 my programmer so f***in crazy. Also put the overboost fooler from itp in and i still get a check engine light but when i get into like when i hit it hard and first and when it gets 2 3rd gear i see 30psi on my boost gauge but the check engine light comes on but it will hold 30 psi all thru 3rd and into 4th so i'm thinking it the hpop can't keep up anyone else think its that? My friend ****ed with the dial on the overboost and then we think we turned it back 2 where it was when i got it. So i'm thinking its the hpop that can't keep up anyone else think i'm rt or wrong. Mods in sig....