ok after making a big **** up and placing this post on the wrong section...ive just swapped over the coil pack and air filter and the car then ran really bad . the car starts ok i little lumpy. but as you pull off there is a lack of power. gets a little better in-between the revs of 2000 and 3000 much over 4000 and it starts to flutter..Also has anyone else had errors on swapping over coil packs..car was running ok ish some flat spots on cold days and when starting up..in fairness it had been lacking grunt for some time..ive put back on old coil pack much the same . replaced leads plugs . runs a little better .but still the flat spots as in almost cuts back .. ive taken off all pipe work and checked for air leaks . all i can think is might of knocked some cabling when removing for battery.