Need some help.
The car lacks power at times it is remapped but sometimes it feels slower than it was standard, it doesn't always do it just randomly happens once it happens its flat till the car is turned off and then the key is re inserted and the car started it's fine again. I know it could be a boost leak but it isn't happening all the time but when it does the car is flat, i'm going to get vagcom plugged in to it tomorrow hopefully but some help would be great.