That's right, I started the parts substitution because I saw false readings from the map sensor. For the price of a turbosmart actuator and second hand boost solenoid it wasnt hard to just get them and fit them too. As it turns out the boost cutting still happens but not as often per drive cycle which has now pointed me back in the direction of the tune. Who can I take it too that uses hp tuners Sent from my HTC One XL using Tapatalk 2