The coil pack's are a very common cause of problems on these cars, very easy DIY job, as are the injectors, you have to remove the whole fuel rail then replace the individual injector, there are some resistance tests you can do before replacing the items, for the coil pack
xxxxxxLow volt conxxxxxxxxxx
xxx(2)xxxxxxxxxxxxx(1)xxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxx
xxx(3)xxxxxxxxxxxxx(4)xxxxx
resistance between 1 & 4, 2 & 3 10500~16500 ohms
low volt plug 1 & 2, 2 & 3 0.4~0.6 ohms
Injector 14~17 ohms
nige110162(at symbol)hotmail.co.uk
nigel, January 2010