Genuine or aftermarket parts ?

The rear bank isnt very nice to do ! did you do them your self?

Multiple misfires on these are often caused by air leaks or a maf fault.Is the maf a genuine Vw or original make unit?Also does the engine rattle on start up and idle.?I would suggest do a vacuum gauge check A low reading could indicate a worn timing chain.Not uncommon on these and a massive job.hth

I've checked the fuel pressure, its ok , not scoped c/p yet, no significant rattle from engine apart from slight tappet noise although when the motor misfires there is a slight rattle from g/end of engine but i put that down to the tickover dropping momentarily , its only done 119000 miles.

Whats really puzzling me is when i put the first set of new A/M leads on it ran ok for 3 miles then slowly developed the misfire back again , at the end of the 6 mile journey it was as bad as before so i bought genuine leads but they have made no difference ?

light at the end of the tunnel (although its only dim) :)

The reason i kept getting no fault codes was down to a dodgy wire on the d plug.

Now i have only 1 code.....................................................00668

which points to a bad connection on the ecu or a dodgy fuse connector, still looking around the net but it seems a common fault on vw,s and audi,s (surprise surprise)!

This power supply to pin 54 via fuse 13 is only for kam (keep alive memory )to ecu to that it remembers its running parameters.It does not affect performance of engine or any misfire issues.The code posted previously is a power supply general code ,possibly from the efi relay situated within the fusebox.Access requires removal of fuse/relay box,then it opens up like a clam shell.Removal of engine ecu often requires a dash off job,but I think you may be wasting your time.hth

As I previously suggested this fault code applies to a line 30 permanent supply voltage which is also present at the fuel pump relay from fuse 14.Fuse 32 supplies the ignition power to the efi relay listed as K4 situated within the fusebox but not visible from outside.Fuses #24,25,26 do not seem to be related to the efi system.hth

Well that was a game and a half !

Changed the brand new coil pack and the problem was cured !

Seems that these £75 coil packs are JUNK, do not buy them , buy only from main dealers , never again will i buy anything like this from auto factors ESPECIALLY those at Sutton.

Thanks for all your help chaps.