hi, dont normally post in here as i have b5's but a mate of mine is having trouble with his b6, its a 2l fsi, 53 plate if i remember correctly

anyway when he tries hard acceleration he gets a loss of power and epc light, someones told him coilpacks faulty but when i scanned with vag-com all i got was

17480 - nox sensor (g295) heater control: circuit malfunction
p1072-008-implausable signal

17428 - fuel pressure regulation: control range exceeded
p1020-008-implausable signal - intermittent

anyone had a similiar problem, does it sound like a coilpack fault, any way of checking them?
any ideas / help would be appreciated, cheers kev