Now that a great deal of Mini Cooper S vehicles with the N14 motor are coming out of warranty, we are seeing quite a few with the check engine light on with code P2884. P2284 is boost control deviation which basically means that the boost from the turbo is not what the computers in the car are expecting. There are several things that need to be checked for this code, but in most cases we are unfortunately finding that the turbo has failed. Due to extreme heat in the turbo, the waste gate system is malfunctioning and causing the turbo pressure to divert before it reaches its full boost pressure. Most cars act fine under standard driving conditions, but as soon as the car sees a load condition like climbing a steep hill or overtaking on the freeway, the car will go into limp mode.
We have a great source for new and re-manufactured turbos, and can beat just about any price. Please feel free to give us a call or post any comments or questions you have.