I've recently done My front radiator and condenser and also new coil packs. The car now starts and runs great and pulls like a train. BBBUUUTTT!!! On normal accélération the car is smooth but when I put my foot down it hits around 4000 rpm then starts popping and banging from the right side exhaust it then clears and off we go sometimes popping at around 6500.i ran vcds and it shows no miss fires I also ran the graph when I drove it and it showed nothing. It has always showed a boost position control sensor implausible signal P2587 - 008 but never has it popped or banged. Has anyone any ideas that I could Look at

 

Yea i thought that but I've run the diagnostic vcds on miss fire graph when I drive it and nothing shows up so I'm thinking not a coil pack it ticks over great and cruises lovely until I boot it