come back from a wonderful Mothers Day brunch...i was bored out of my mind driving home and apparently so was someone else so were playing a little cat and mouse when i finally get a chance to pass him im at about 5k RPM's in 4thand it kind of felt like a mild misfire but no CEL or anything it felt like the whole car was kind of bucking....so i just slowed down and continued home than 2 minutes from my house i get the CEL[:'(]dont know if it is related i will get it scanned tomorow...
but i also just put in a 5 bar FPR i had and was getting more boost from it so could this be the problem??? any geusses

 

It depends on the code, if your boosting too much and hitting limp mode it would throw a code for excessive pressure of the turbo. Do you have a diode installed on the map sensor circuit?